Sensors are devices that produce an output signal in response to a physical input like pressure, temperature, or displacement. Transducers convert one form of energy into another. Sensor performance is characterized by static and dynamic characteristics. Static characteristics include range, accuracy, sensitivity, hysteresis, linearity, repeatability, reproducibility, stability, and resolution. Dynamic characteristics include response time, time constant, rise time, and setting time. Common sensors include displacement, temperature, light, position, fluid level, and proximity sensors that use effects like piezoelectricity, resistance temperature, photoelectricity, and capacitance.
Sensors and transducers convert one form of energy into another. A sensor receives and responds to a signal, a transducer converts one form of energy to another, and an actuator converts an electrical signal to physical output. Transducers can be classified as active or passive depending on whether they require an external power source. Common transducers include resistance, capacitive, piezoelectric, hall effect, and photoelectric transducers. Key parameters for transducers include linearity, repeatability, resolution, and reliability.
This document discusses different types of sensors and their characteristics. It covers the differences between active and passive instruments, as well as null-type and deflection-type instruments. It also discusses analogue versus digital instruments and some key sensor performance characteristics such as accuracy, precision, threshold, resolution, sensitivity, linearity, hysteresis and more. Key factors that influence sensor selection are resolution requirements, cost, accuracy needs, and application environment. Proper sensor selection depends on balancing these factors for each unique measurement scenario.
This document discusses computer process interfaces for process control. It describes how sensors measure process variables and transmit that data to computers via analog-to-digital conversion. Actuators then drive process parameters based on computer output signals converted via digital-to-analog conversion. Key components are sensors, actuators, analog-to-digital converters, digital-to-analog converters, and input/output devices.
The document discusses various types of transducers and their characteristics. It describes parameters like range, error, accuracy, resolution, sensitivity and hysteresis error. It also discusses stability, dead band, output impedance and dynamic characteristics like response time, time constant, rise time and settling time. Examples of different types of transducers are given, including resistive, capacitive, inductive, Hall effect, photoelectric and strain gauge transducers. Applications and limitations of each type are summarized.
- Sensors can be analog or complex, with complex sensors communicating digitally using PWM, I2C, SPI, etc.
- Common sensors discussed include tilt sensors, ultrasonic sensors for distance measurement, and accelerometers.
- Ultrasonic sensors emit sound pulses and measure the time of return to determine distance to objects within a few meters. Accelerometers can measure tilt and movement but data can be noisy.
- Prototyping with sensors helps explore interactions even if true presence or distance detection is difficult to achieve at this level.
The document discusses sensors, actuators, and input/output devices used in computer-controlled processes. It describes:
1) Sensors that measure continuous and discrete process variables and transmit signals to computers.
2) Actuators that receive signals from computers to control continuous and discrete process parameters.
3) Analog-to-digital and digital-to-analog conversion devices that allow computers to interface with analog sensors and actuators.
4) Input/output devices that allow computers to interface with discrete and pulse data from processes.
This article provides an introduction to the fundamental of Sensors and Transducers. It illustrates the different classifications of sensors and transducers. Explains capacitive, resistive and inductive transducers in brief. Also shows the examples under these types of transducers.
Sensors are devices that produce an output signal in response to a physical input like pressure, temperature, or displacement. Transducers convert one form of energy into another. Sensor performance is characterized by static and dynamic characteristics. Static characteristics include range, accuracy, sensitivity, hysteresis, linearity, repeatability, reproducibility, stability, and resolution. Dynamic characteristics include response time, time constant, rise time, and setting time. Common sensors include displacement, temperature, light, position, fluid level, and proximity sensors that use effects like piezoelectricity, resistance temperature, photoelectricity, and capacitance.
Sensors and transducers convert one form of energy into another. A sensor receives and responds to a signal, a transducer converts one form of energy to another, and an actuator converts an electrical signal to physical output. Transducers can be classified as active or passive depending on whether they require an external power source. Common transducers include resistance, capacitive, piezoelectric, hall effect, and photoelectric transducers. Key parameters for transducers include linearity, repeatability, resolution, and reliability.
This document discusses different types of sensors and their characteristics. It covers the differences between active and passive instruments, as well as null-type and deflection-type instruments. It also discusses analogue versus digital instruments and some key sensor performance characteristics such as accuracy, precision, threshold, resolution, sensitivity, linearity, hysteresis and more. Key factors that influence sensor selection are resolution requirements, cost, accuracy needs, and application environment. Proper sensor selection depends on balancing these factors for each unique measurement scenario.
This document discusses computer process interfaces for process control. It describes how sensors measure process variables and transmit that data to computers via analog-to-digital conversion. Actuators then drive process parameters based on computer output signals converted via digital-to-analog conversion. Key components are sensors, actuators, analog-to-digital converters, digital-to-analog converters, and input/output devices.
The document discusses various types of transducers and their characteristics. It describes parameters like range, error, accuracy, resolution, sensitivity and hysteresis error. It also discusses stability, dead band, output impedance and dynamic characteristics like response time, time constant, rise time and settling time. Examples of different types of transducers are given, including resistive, capacitive, inductive, Hall effect, photoelectric and strain gauge transducers. Applications and limitations of each type are summarized.
- Sensors can be analog or complex, with complex sensors communicating digitally using PWM, I2C, SPI, etc.
- Common sensors discussed include tilt sensors, ultrasonic sensors for distance measurement, and accelerometers.
- Ultrasonic sensors emit sound pulses and measure the time of return to determine distance to objects within a few meters. Accelerometers can measure tilt and movement but data can be noisy.
- Prototyping with sensors helps explore interactions even if true presence or distance detection is difficult to achieve at this level.
The document discusses sensors, actuators, and input/output devices used in computer-controlled processes. It describes:
1) Sensors that measure continuous and discrete process variables and transmit signals to computers.
2) Actuators that receive signals from computers to control continuous and discrete process parameters.
3) Analog-to-digital and digital-to-analog conversion devices that allow computers to interface with analog sensors and actuators.
4) Input/output devices that allow computers to interface with discrete and pulse data from processes.
This article provides an introduction to the fundamental of Sensors and Transducers. It illustrates the different classifications of sensors and transducers. Explains capacitive, resistive and inductive transducers in brief. Also shows the examples under these types of transducers.
This document discusses different types of sensors and transducers. It begins by classifying sensors as either primary or secondary, active or passive, and analog or digital based on their method of application, energy conversion, and output signal characteristics. It then describes various passive resistive, capacitive, and inductive sensors including potentiometers, temperature dependent resistors, strain gauges, photoconductors, capacitive displacement and pressure sensors, and inductive proximity switches. Active sensors that generate their own output signal like thermocouples and photovoltaic cells are also introduced. Key applications and operating principles of different sensors are outlined.
This document discusses various sensors and transducers. It defines a transducer as a device that converts one form of energy to another, and a sensor as a transducer that detects a characteristic of its environment. It then provides details on different types of transducers and sensors, including antennas, Hall effect sensors, cathode ray tubes, sensors for ionizing radiation, electric current sensors, and proximity sensors. For each it discusses their definition, operating principle, applications and examples. The document is authored by several students and provides a comprehensive overview of key sensors and transducers.
This document provides an overview of sensors and actuators. It defines what sensors are, how they work by converting one type of energy to electrical energy. It also distinguishes sensors from transducers. The document discusses different types of sensors including passive and active sensors. It covers key sensor specifications and performance characteristics such as sensitivity, accuracy, bandwidth, resolution and noise. The document provides examples to illustrate sensor classification and performance evaluation.
Pe 4030 ch 2 sensors and transducers part 1 final sept 20 2016Charlton Inao
The document discusses various types of sensors and transducers. It defines sensors as devices that produce an output signal in response to a physical input. Transducers are defined as devices that convert a signal from one form of energy to another. Common transducers include temperature sensors, pressure sensors, and position sensors. The document provides examples of different types of position sensors such as potentiometers, strain gauges, linear variable differential transformers (LVDTs), and optical encoders. It also discusses important specifications for sensors like sensitivity, accuracy, resolution, and hysteresis.
UNIT - 1 -INTRODUCTION-Sensor and transducers-ME6702– MECHATRONICS Mohanumar S
Sensors are devices that produce an output signal proportional to a physical phenomenon like pressure, temperature, or displacement. Transducers convert one form of energy to another. Static characteristics like range, accuracy, sensitivity and dynamic characteristics like response time describe a sensor's performance. Common sensors include potentiometers, strain gauges, capacitive, inductive, Hall effect, thermistors, thermocouples, photodiodes and proximity sensors. Care must be taken in selecting the proper sensor based on the required accuracy, range, reliability and other factors.
This document discusses various types of sensors and transducers. It begins by describing the fundamental elements of a measuring instrument, including the physical variable being measured, primary detector/transducer that converts the physical variable to an electrical signal, intermediate signal processing stage, and final output stage. It then compares electronic versus mechanical instruments. Key definitions of transducer, sensor and actuator are provided. The rest of the document discusses various types of sensors in more detail, including resistive, capacitive, inductive, strain gauges, temperature sensors, light sensors, and flow/speed sensors.
The document discusses various types of sensors and transducers used in mechatronics systems to measure physical quantities like displacement, temperature, pressure, and stress. It describes key elements like sensors that acquire physical parameters and transducers that convert one form of energy to another. Examples of different sensors are provided, like thermistors for temperature sensing and LVDTs for displacement measurement. Characteristics of transducers and sensors like range, sensitivity, accuracy, and response time are also defined.
Digital signals represent data as discrete values using a finite number of levels, unlike analog signals which represent continuous values. The analog to digital conversion process quantizes a sampled analog voltage into discrete digital codes using an ADC. Key components of the ADC process include a buffer amplifier, low-pass filter, sample and hold amplifier, and ADC interfaced with a computer. The resolution of an ADC is determined by the number of bits used to digitize the analog input. Common ADC designs include successive approximation, flash encoding, and delta-sigma modulation. Data transmission converts process signals into transmittable forms like pneumatic or electrical signals to send to remote recorders over various distances using methods like hydraulic, pneumatic, magnetic, or electrical transmission.
This document provides definitions and information about sensors and transducers. It defines a sensor as a device that responds to a physical stimulus and produces a signal and a transducer as a device that converts energy from one form to another. Common sensors measure displacement, position, temperature, pressure, force, velocity and other quantities. Active transducers directly generate a signal in response to stimulation while passive transducers require external power. Performance characteristics like range, sensitivity and hysteresis are also discussed. Examples of common displacement and position sensors like potentiometers, strain gauges, capacitive sensors and LVDTs are provided along with their applications.
The document discusses sensors and their uses in manufacturing. It defines a sensor as a device that measures a physical quantity and converts it into a readable form. Sensors are then classified into different types including tactile, proximity, range, miscellaneous, and machine vision sensors. Examples are provided for each type along with their working principles and applications in robotics and manufacturing for tasks like distance sensing, contour tracking, machine vision, process monitoring, and quality control. Key desirable sensor features and concepts like accuracy vs precision are also covered at a high level.
The document discusses different types of displacement and position sensors. It describes resistive sensors like potentiometers that measure displacement by detecting changes in resistance as a conductive wiper slides along a resistive element. Inductive sensors are also covered, including linear variable differential transformers (LVDTs) that measure displacement by detecting changes in inductance as a magnetic core moves. Capacitive sensors are explained as measuring displacement through variations in capacitance that occur when the distance between capacitor plates changes.
Pe 4030 ch 2 sensors and transducers part 2 flow level temp light oct 7, 2016Charlton Inao
This document provides an overview of various liquid flow and level sensors, including:
1) Orifice, turbine, electromagnetic, and ultrasonic flow sensors
2) Float, differential pressure, radar, and ultrasonic level sensors
3) Details on the working principles and applications of technologies like guided-wave radar and gravimetric sensing.
The objectives are to understand common sensor types and how to select sensors based on industrial requirements.
1. The document discusses various methods for measuring linear and angular velocity, including electromagnetic, seismic, and digital transducers as well as using the Doppler effect.
2. Electromagnetic transducers are the most commonly used for linear velocity and work by inducing a voltage in a coil from the motion of a magnet. Moving magnet and moving coil types are described.
3. Angular velocity can be measured with a tachometer, which can be mechanical and count revolutions or electrical and generate a voltage proportional to speed.
The document discusses various sensor technologies and considerations for sensing systems. It covers topics such as phase linearity, transducer terminology, sensor categorization based on physical phenomena and measuring mechanism, specifications of sensors including accuracy and resolution, strain gauges, acceleration sensing, force sensing, displacement sensing, velocity sensing, shock sensing, angular motion sensing, MEMS technology, and considerations for designing sensing systems. The key aspects covered are the operating principles, advantages, and limitations of different sensor types.
This document discusses different types of sensors and transducers. It begins with an introduction to sensors, defining them as devices that convert non-electrical quantities into electrical signals. It then covers various classifications of sensors including primary/secondary, active/passive, and analog/digital. Specific types of sensors are described in more detail, including resistive sensors such as potentiometers, temperature dependent resistors, and strain gauges. Capacitive and inductive sensors are also briefly mentioned. The document provides examples and equations to explain the functioning and properties of different sensors.
Sensors are devices that produce an output signal proportional to a physical phenomenon like pressure, temperature, or displacement. Transducers convert one form of energy to another. Static characteristics like range, accuracy, sensitivity and dynamic characteristics like response time describe a sensor's performance. Common sensors include potentiometers, strain gauges, capacitive, inductive, Hall effect, thermistors, thermocouples, photodiodes and proximity sensors. Care must be taken in selecting the proper sensor based on the required accuracy, range, reliability and other factors.
Sensors are devices that produce an output signal in response to a physical input like pressure, temperature, or displacement. Transducers convert one form of energy into another. Sensor performance is characterized by static and dynamic characteristics. Static characteristics include range, accuracy, sensitivity, hysteresis, and repeatability. Dynamic characteristics describe how a sensor responds over time, including response time and time constant. Common sensors include displacement sensors like potentiometers and strain gauges, temperature sensors like RTDs and thermocouples, and light sensors like photodiodes. Sensor selection depends on required accuracy, operating range, speed of response, reliability, and other factors.
This document discusses different types of sensors and transducers. It begins by classifying sensors as either primary or secondary, active or passive, and analog or digital based on their method of application, energy conversion, and output signal characteristics. It then describes various passive resistive, capacitive, and inductive sensors including potentiometers, temperature dependent resistors, strain gauges, photoconductors, capacitive displacement and pressure sensors, and inductive proximity switches. Active sensors that generate their own output signal like thermocouples and photovoltaic cells are also introduced. Key applications and operating principles of different sensors are outlined.
This document discusses various sensors and transducers. It defines a transducer as a device that converts one form of energy to another, and a sensor as a transducer that detects a characteristic of its environment. It then provides details on different types of transducers and sensors, including antennas, Hall effect sensors, cathode ray tubes, sensors for ionizing radiation, electric current sensors, and proximity sensors. For each it discusses their definition, operating principle, applications and examples. The document is authored by several students and provides a comprehensive overview of key sensors and transducers.
This document provides an overview of sensors and actuators. It defines what sensors are, how they work by converting one type of energy to electrical energy. It also distinguishes sensors from transducers. The document discusses different types of sensors including passive and active sensors. It covers key sensor specifications and performance characteristics such as sensitivity, accuracy, bandwidth, resolution and noise. The document provides examples to illustrate sensor classification and performance evaluation.
Pe 4030 ch 2 sensors and transducers part 1 final sept 20 2016Charlton Inao
The document discusses various types of sensors and transducers. It defines sensors as devices that produce an output signal in response to a physical input. Transducers are defined as devices that convert a signal from one form of energy to another. Common transducers include temperature sensors, pressure sensors, and position sensors. The document provides examples of different types of position sensors such as potentiometers, strain gauges, linear variable differential transformers (LVDTs), and optical encoders. It also discusses important specifications for sensors like sensitivity, accuracy, resolution, and hysteresis.
UNIT - 1 -INTRODUCTION-Sensor and transducers-ME6702– MECHATRONICS Mohanumar S
Sensors are devices that produce an output signal proportional to a physical phenomenon like pressure, temperature, or displacement. Transducers convert one form of energy to another. Static characteristics like range, accuracy, sensitivity and dynamic characteristics like response time describe a sensor's performance. Common sensors include potentiometers, strain gauges, capacitive, inductive, Hall effect, thermistors, thermocouples, photodiodes and proximity sensors. Care must be taken in selecting the proper sensor based on the required accuracy, range, reliability and other factors.
This document discusses various types of sensors and transducers. It begins by describing the fundamental elements of a measuring instrument, including the physical variable being measured, primary detector/transducer that converts the physical variable to an electrical signal, intermediate signal processing stage, and final output stage. It then compares electronic versus mechanical instruments. Key definitions of transducer, sensor and actuator are provided. The rest of the document discusses various types of sensors in more detail, including resistive, capacitive, inductive, strain gauges, temperature sensors, light sensors, and flow/speed sensors.
The document discusses various types of sensors and transducers used in mechatronics systems to measure physical quantities like displacement, temperature, pressure, and stress. It describes key elements like sensors that acquire physical parameters and transducers that convert one form of energy to another. Examples of different sensors are provided, like thermistors for temperature sensing and LVDTs for displacement measurement. Characteristics of transducers and sensors like range, sensitivity, accuracy, and response time are also defined.
Digital signals represent data as discrete values using a finite number of levels, unlike analog signals which represent continuous values. The analog to digital conversion process quantizes a sampled analog voltage into discrete digital codes using an ADC. Key components of the ADC process include a buffer amplifier, low-pass filter, sample and hold amplifier, and ADC interfaced with a computer. The resolution of an ADC is determined by the number of bits used to digitize the analog input. Common ADC designs include successive approximation, flash encoding, and delta-sigma modulation. Data transmission converts process signals into transmittable forms like pneumatic or electrical signals to send to remote recorders over various distances using methods like hydraulic, pneumatic, magnetic, or electrical transmission.
This document provides definitions and information about sensors and transducers. It defines a sensor as a device that responds to a physical stimulus and produces a signal and a transducer as a device that converts energy from one form to another. Common sensors measure displacement, position, temperature, pressure, force, velocity and other quantities. Active transducers directly generate a signal in response to stimulation while passive transducers require external power. Performance characteristics like range, sensitivity and hysteresis are also discussed. Examples of common displacement and position sensors like potentiometers, strain gauges, capacitive sensors and LVDTs are provided along with their applications.
The document discusses sensors and their uses in manufacturing. It defines a sensor as a device that measures a physical quantity and converts it into a readable form. Sensors are then classified into different types including tactile, proximity, range, miscellaneous, and machine vision sensors. Examples are provided for each type along with their working principles and applications in robotics and manufacturing for tasks like distance sensing, contour tracking, machine vision, process monitoring, and quality control. Key desirable sensor features and concepts like accuracy vs precision are also covered at a high level.
The document discusses different types of displacement and position sensors. It describes resistive sensors like potentiometers that measure displacement by detecting changes in resistance as a conductive wiper slides along a resistive element. Inductive sensors are also covered, including linear variable differential transformers (LVDTs) that measure displacement by detecting changes in inductance as a magnetic core moves. Capacitive sensors are explained as measuring displacement through variations in capacitance that occur when the distance between capacitor plates changes.
Pe 4030 ch 2 sensors and transducers part 2 flow level temp light oct 7, 2016Charlton Inao
This document provides an overview of various liquid flow and level sensors, including:
1) Orifice, turbine, electromagnetic, and ultrasonic flow sensors
2) Float, differential pressure, radar, and ultrasonic level sensors
3) Details on the working principles and applications of technologies like guided-wave radar and gravimetric sensing.
The objectives are to understand common sensor types and how to select sensors based on industrial requirements.
1. The document discusses various methods for measuring linear and angular velocity, including electromagnetic, seismic, and digital transducers as well as using the Doppler effect.
2. Electromagnetic transducers are the most commonly used for linear velocity and work by inducing a voltage in a coil from the motion of a magnet. Moving magnet and moving coil types are described.
3. Angular velocity can be measured with a tachometer, which can be mechanical and count revolutions or electrical and generate a voltage proportional to speed.
The document discusses various sensor technologies and considerations for sensing systems. It covers topics such as phase linearity, transducer terminology, sensor categorization based on physical phenomena and measuring mechanism, specifications of sensors including accuracy and resolution, strain gauges, acceleration sensing, force sensing, displacement sensing, velocity sensing, shock sensing, angular motion sensing, MEMS technology, and considerations for designing sensing systems. The key aspects covered are the operating principles, advantages, and limitations of different sensor types.
This document discusses different types of sensors and transducers. It begins with an introduction to sensors, defining them as devices that convert non-electrical quantities into electrical signals. It then covers various classifications of sensors including primary/secondary, active/passive, and analog/digital. Specific types of sensors are described in more detail, including resistive sensors such as potentiometers, temperature dependent resistors, and strain gauges. Capacitive and inductive sensors are also briefly mentioned. The document provides examples and equations to explain the functioning and properties of different sensors.
Sensors are devices that produce an output signal proportional to a physical phenomenon like pressure, temperature, or displacement. Transducers convert one form of energy to another. Static characteristics like range, accuracy, sensitivity and dynamic characteristics like response time describe a sensor's performance. Common sensors include potentiometers, strain gauges, capacitive, inductive, Hall effect, thermistors, thermocouples, photodiodes and proximity sensors. Care must be taken in selecting the proper sensor based on the required accuracy, range, reliability and other factors.
Sensors are devices that produce an output signal in response to a physical input like pressure, temperature, or displacement. Transducers convert one form of energy into another. Sensor performance is characterized by static and dynamic characteristics. Static characteristics include range, accuracy, sensitivity, hysteresis, and repeatability. Dynamic characteristics describe how a sensor responds over time, including response time and time constant. Common sensors include displacement sensors like potentiometers and strain gauges, temperature sensors like RTDs and thermocouples, and light sensors like photodiodes. Sensor selection depends on required accuracy, operating range, speed of response, reliability, and other factors.
20ME702– MECHATRONICS -UNIT-1-Sensor and transducers.pptMohanumar S
Sensors are devices that produce an output signal proportional to a physical input like pressure, temperature, or displacement. Transducers convert one type of energy to another. Static sensor characteristics like range, accuracy, and sensitivity describe parameters that remain constant or change slowly over time, while dynamic characteristics like response time describe how outputs vary with rapid input changes. Common sensors include displacement, temperature, position, light, proximity, and fluid level sensors that use techniques like potentiometers, strain gauges, capacitance, Hall effect, resistance, and thermoelectricity to convert physical phenomena into electrical outputs.
MECHATRONICS-UNIT-I-Sensor and transducers.pptCHANDRA KUMAR S
This document discusses different types of sensors and transducers. It defines sensors as devices that produce an output signal proportional to a physical input quantity, and transducers as devices that convert one form of energy to another. The document classifies sensors as active, passive, analog or digital. It describes various static and dynamic characteristics of sensors and transducers. Finally, it provides details on different displacement, position, temperature and other sensors.
This document discusses sensors and transducers. It begins by defining sensors as devices that convert physical phenomena into electrical signals, and transducers as the interface between the physical world and electrical devices. It then describes several key performance characteristics of sensors, including transfer function, sensitivity, dynamic range, accuracy, precision, nonlinearity, resolution, stability, and hysteresis. Different types of sensors are classified based on their signal characteristics, power supply needs, and subject of measurement. Examples of common sensors like position, velocity, light, flow, and proximity sensors are provided.
Mechatronics is a multidisciplinary field that refers to the skill sets needed in the contemporary, advanced automated manufacturing industry. At the intersection of mechanics, electronics, and computing, mechatronics specialists create simpler, smarter systems.
2012 METU Lecture 2 Precision Sensors for Measurement of Strain Displacement ...omidsalangi1
This document outlines a series of 6 lectures on smart materials and systems. It discusses sensors and sensor technologies that are important for smart systems. Specifically, it covers displacement, strain, force and acceleration, and temperature sensors. For displacement sensing it discusses potentiometers, linear variable differential transformers (LVDTs), and non-contact sensors like encoders and capacitive sensors. It provides details on operating principles, examples, and evaluation criteria for selecting sensors for smart systems applications.
The document discusses different types of signals, sensors, actuators and analog to digital conversion. It describes that analog signals are continuous while digital signals are discrete. It also discusses different analog sensors like temperature, light, sound, pressure and their working mechanisms. Further, it summarizes digital sensors and their advantages over analog sensors. The document lists different sensors used in robots and concludes with discussing actuators and their role in converting controller commands into physical changes.
This document provides an introduction to sensors, including definitions of key terms like sensors, transducers, and actuators. It describes different types of sensors such as temperature sensors, accelerometers, light sensors, and ultrasonic sensors. It explains various sensor principles including how sensors can be classified as active or passive, contact or non-contact, and absolute or relative. The document also discusses choosing sensors and interfacing sensors with electronics.
Sensors are devices that receive and respond to external stimuli. They can be classified as passive or active, absolute or relative, based on their operating principles and energy requirements. Sensors have characteristics like transfer function, span, accuracy, calibration, hysteresis, nonlinearity, repeatability, and resolution that describe their performance. Environmental factors like temperature, humidity can affect sensor stability and accuracy over time. An example temperature sensing application using a thermistor sensor interfaced with an analog to digital converter is provided.
Introduction to sensors & transducers by Bapi Kumar DasB.k. Das
The document discusses sensors and transducers. It defines a sensor as a device that measures a physical quantity and converts it into a signal that can be read by an observer or instrument. A transducer is defined as a device that converts one form of energy into another. Sensors convert a physical parameter into an electrical output, while actuators convert an electrical signal into a physical output. Common types of sensors mentioned include temperature, light, magnetic, ultrasonic, pressure, and biosensors. Sensors are used in many applications ranging from industrial machinery to medical devices to consumer electronics.
A transducer is a device that converts one form of energy into another. It takes a non-electrical input signal, such as temperature, sound, or light, and converts it into an electrical output signal, such as voltage, current, or capacitance. Transducers have sensing elements that detect physical quantities and transduction elements that convert the non-electrical signal into an electrical one. Examples of transducers include microphones, light bulbs, and electric motors. Key characteristics for transducers include accuracy, linearity, repeatability, stability, sensitivity, size, dynamic range, error, speed, noise, hysteresis, and ruggedness.
This document provides an introduction to sensors and transducers. It defines a sensor as a device that receives and responds to a signal or stimulus, and a transducer as a device that converts one form of energy into another. The document then discusses different types of sensors classified by their energy form, including displacement, force, pressure, velocity, and level sensors. It provides examples of common sensor types like potentiometers, strain gauges, LVDTs, optical encoders, and piezoelectric sensors. Finally, it covers the topic of signal conditioning, where the signal from the sensor is prepared for use in other parts of a system.
This document discusses different types of sensors and their characteristics. It describes various sensors that measure variables like temperature, position, velocity, acceleration, presence detection, flow rates, mass, force and pressure. It explains the physical properties these sensors use to convert the measured variable into a useful signal. The document also outlines key static characteristics of sensors like sensitivity, resolution, linearity and drift. It defines dynamic response characteristics such as rise time, delay time, peak time and settling time. Finally, it discusses statistical characteristics like accuracy and precision.
This document provides information on various sensor technologies. It discusses key concepts in sensor terminology and categorization. It describes considerations for instrumentation and measurement. It also provides details on specific sensor types including their operating principles, specifications, advantages, and disadvantages. These include sensors for strain, acceleration, force, displacement, velocity, and shock.
This document provides information on various sensor technologies. It discusses key concepts related to phase linearity and distortion in sensors. It also defines transducers and categorizes sensors based on physical phenomena measured and measuring mechanisms. The document outlines considerations for instrumentation and describes common sensor specifications. It provides examples of specific sensor types for measuring strain, acceleration, force, displacement, velocity, and shock and describes their operating principles and attributes.
This document provides information on various sensor technologies. It discusses key concepts in sensor terminology and categorization. It describes common sensor types including those that measure phase linearity, mechanical properties like strain and displacement, thermal properties, acceleration, force, velocity, and shock. For each sensor type, it outlines important specifications and considerations in sensor design and measurement.
The document discusses various sensor technologies and considerations for sensing systems. It describes different types of sensors categorized by the physical phenomena they measure such as mechanical, thermal, and optical sensors. It also discusses sensor specifications including accuracy, resolution, sensitivity, bandwidth, and noise. The document covers various sensor technologies for measuring strain, acceleration, force, displacement, velocity, and angular motion. It describes MEMS sensors and their fabrication techniques. Finally, it discusses considerations for designing sensing systems such as sensor selection, data collection, communication, power, and environmental influence.
The document discusses various sensor technologies and considerations for sensing systems. It describes different types of sensors categorized by the physical phenomena they measure such as mechanical, thermal, and optical sensors. It also discusses sensor specifications including accuracy, resolution, sensitivity, bandwidth, and noise. The document covers various sensor technologies for measuring strain, acceleration, force, displacement, velocity, and angular motion. It describes MEMS sensors and their fabrication techniques. Finally, it discusses considerations for designing sensing systems such as sensor selection, data collection, communication, power, and environmental influence.
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Friction is a force that opposes the relative motion between two objects in contact. There are two main types of friction: static friction and dynamic friction. Static friction acts on objects at rest, while dynamic friction acts when objects are in motion. Dynamic friction is less than static friction. Friction can also be classified as sliding friction, rolling friction, or pivot friction depending on the type of relative motion. The coefficient of friction is defined as the ratio between the limiting friction force and the normal reaction force. The limiting angle of friction is the maximum angle at which an object will remain at rest on an inclined plane before sliding down. The angle of repose is the angle of inclination at which an object will just begin to slide
Clutches are mechanical devices that connect or disconnect a driven shaft from a driving shaft to allow transmission of power between the two at the operator's will. There are different types of frictional clutches including single plate clutches where a single plate transmits torque from the driving shaft to the driven shaft.
This document describes different types of braking systems used in vehicles, including pivoted block or shoe brakes, simple band brakes, differential band brakes, and double shoe brakes. It provides examples of each type with given parameters and shows the calculations to determine values like braking torque, necessary spring force, band tensions, and time to stop a flywheel. Formulas involving coefficients of friction, radii, angles of contact, and tensions are used to solve for unknown values in brake system examples.
Gear trains are combinations of wheels that transmit motion from one shaft to another. There are several types of gear trains including simple, compound, epicyclic, and reverted gear trains. A simple gear train contains one gear on each shaft connected by meshing teeth. An epicyclic or planetary gear train contains one or more outer gears that rotate around a central gear. Gear trains can be used to increase or decrease shaft speed and rotate shafts in the same or opposite directions.
Law of toothed gearing – Involutes and cycloidal tooth profiles –Spur Gear terminology and
definitions –Gear tooth action – contact ratio – Interference and undercutting. Helical, Bevel, Worm, Rack and Pinion gears
Law of toothed gearing – Involutes and cycloidal tooth profiles –Spur Gear terminology and
definitions –Gear tooth action – contact ratio – Interference and undercutting. Helical, Bevel, Worm, Rack and Pinion gears
Law of toothed gearing – Involutes and cycloidal tooth profiles –Spur Gear terminology and
definitions –Gear tooth action – contact ratio – Interference and undercutting. Helical, Bevel, Worm, Rack and Pinion gears
Advanced control scheme of doubly fed induction generator for wind turbine us...IJECEIAES
This paper describes a speed control device for generating electrical energy on an electricity network based on the doubly fed induction generator (DFIG) used for wind power conversion systems. At first, a double-fed induction generator model was constructed. A control law is formulated to govern the flow of energy between the stator of a DFIG and the energy network using three types of controllers: proportional integral (PI), sliding mode controller (SMC) and second order sliding mode controller (SOSMC). Their different results in terms of power reference tracking, reaction to unexpected speed fluctuations, sensitivity to perturbations, and resilience against machine parameter alterations are compared. MATLAB/Simulink was used to conduct the simulations for the preceding study. Multiple simulations have shown very satisfying results, and the investigations demonstrate the efficacy and power-enhancing capabilities of the suggested control system.
Design and optimization of ion propulsion dronebjmsejournal
Electric propulsion technology is widely used in many kinds of vehicles in recent years, and aircrafts are no exception. Technically, UAVs are electrically propelled but tend to produce a significant amount of noise and vibrations. Ion propulsion technology for drones is a potential solution to this problem. Ion propulsion technology is proven to be feasible in the earth’s atmosphere. The study presented in this article shows the design of EHD thrusters and power supply for ion propulsion drones along with performance optimization of high-voltage power supply for endurance in earth’s atmosphere.
Null Bangalore | Pentesters Approach to AWS IAMDivyanshu
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
Embedded machine learning-based road conditions and driving behavior monitoringIJECEIAES
Car accident rates have increased in recent years, resulting in losses in human lives, properties, and other financial costs. An embedded machine learning-based system is developed to address this critical issue. The system can monitor road conditions, detect driving patterns, and identify aggressive driving behaviors. The system is based on neural networks trained on a comprehensive dataset of driving events, driving styles, and road conditions. The system effectively detects potential risks and helps mitigate the frequency and impact of accidents. The primary goal is to ensure the safety of drivers and vehicles. Collecting data involved gathering information on three key road events: normal street and normal drive, speed bumps, circular yellow speed bumps, and three aggressive driving actions: sudden start, sudden stop, and sudden entry. The gathered data is processed and analyzed using a machine learning system designed for limited power and memory devices. The developed system resulted in 91.9% accuracy, 93.6% precision, and 92% recall. The achieved inference time on an Arduino Nano 33 BLE Sense with a 32-bit CPU running at 64 MHz is 34 ms and requires 2.6 kB peak RAM and 139.9 kB program flash memory, making it suitable for resource-constrained embedded systems.
DEEP LEARNING FOR SMART GRID INTRUSION DETECTION: A HYBRID CNN-LSTM-BASED MODELijaia
As digital technology becomes more deeply embedded in power systems, protecting the communication
networks of Smart Grids (SG) has emerged as a critical concern. Distributed Network Protocol 3 (DNP3)
represents a multi-tiered application layer protocol extensively utilized in Supervisory Control and Data
Acquisition (SCADA)-based smart grids to facilitate real-time data gathering and control functionalities.
Robust Intrusion Detection Systems (IDS) are necessary for early threat detection and mitigation because
of the interconnection of these networks, which makes them vulnerable to a variety of cyberattacks. To
solve this issue, this paper develops a hybrid Deep Learning (DL) model specifically designed for intrusion
detection in smart grids. The proposed approach is a combination of the Convolutional Neural Network
(CNN) and the Long-Short-Term Memory algorithms (LSTM). We employed a recent intrusion detection
dataset (DNP3), which focuses on unauthorized commands and Denial of Service (DoS) cyberattacks, to
train and test our model. The results of our experiments show that our CNN-LSTM method is much better
at finding smart grid intrusions than other deep learning algorithms used for classification. In addition,
our proposed approach improves accuracy, precision, recall, and F1 score, achieving a high detection
accuracy rate of 99.50%.
Build the Next Generation of Apps with the Einstein 1 Platform.
Rejoignez Philippe Ozil pour une session de workshops qui vous guidera à travers les détails de la plateforme Einstein 1, l'importance des données pour la création d'applications d'intelligence artificielle et les différents outils et technologies que Salesforce propose pour vous apporter tous les bénéfices de l'IA.
Use PyCharm for remote debugging of WSL on a Windo cf5c162d672e4e58b4dde5d797...shadow0702a
This document serves as a comprehensive step-by-step guide on how to effectively use PyCharm for remote debugging of the Windows Subsystem for Linux (WSL) on a local Windows machine. It meticulously outlines several critical steps in the process, starting with the crucial task of enabling permissions, followed by the installation and configuration of WSL.
The guide then proceeds to explain how to set up the SSH service within the WSL environment, an integral part of the process. Alongside this, it also provides detailed instructions on how to modify the inbound rules of the Windows firewall to facilitate the process, ensuring that there are no connectivity issues that could potentially hinder the debugging process.
The document further emphasizes on the importance of checking the connection between the Windows and WSL environments, providing instructions on how to ensure that the connection is optimal and ready for remote debugging.
It also offers an in-depth guide on how to configure the WSL interpreter and files within the PyCharm environment. This is essential for ensuring that the debugging process is set up correctly and that the program can be run effectively within the WSL terminal.
Additionally, the document provides guidance on how to set up breakpoints for debugging, a fundamental aspect of the debugging process which allows the developer to stop the execution of their code at certain points and inspect their program at those stages.
Finally, the document concludes by providing a link to a reference blog. This blog offers additional information and guidance on configuring the remote Python interpreter in PyCharm, providing the reader with a well-rounded understanding of the process.
2. Sensor
Sensor are devices which produce a proportional
output signal (mechanical, electrical, magnetic etc.,)
when exposed to a physical phenomenon (pressure,
temperature, displacement , force etc.,).
3. Transducer
Transducer are devices which converts an input of one
form of energy in to an output of another form of
energy.
4. Performance terminology
• Static characteristics
– Static characteristics of an instrument are the
parameters which are more or less constant or varying
very slowly with time.
• Dynamic characteristics
– Sensors and actuators respond to inputs that change
with time. Dynamic characteristics of an instrument are
the parameters which are varying with time.
5. Static characteristics
Range – e.g.: a thermocouple may have a range of -100
to 1000°C
Span : maximum value of input – minimum value of
input
Error : measured value – true input value
Accuracy :
Sensitivity: it is defined as the change in output per
change in input
6. Static characteristics
Hysteresis: it is defined as the maximum difference in
output for a given input when this value is approached
from the opposite direction.
Linearity: it is refer to the output that is directly
proportional to input over its entire range.
7. Static characteristics
• Repeatability: it is defined as the ability of the sensor
to give same output reading when the same input value
is applied repeatedly under the same operating
conditions.
• Reproducibility: it is defined as the degree of closeness
among the repeated measurements of the output for
the same value of input under the same operating
conditions at different times.
8. Static characteristics
Stability : it means the ability of the sensor to indicate
the same output over a period of time for a constant
input.
Dead time: it is the time taken by the sensor from the
application of input to begin its response and change.
Resolution: it is defined as the smallest change that
can be detected by a sensor