this presentation gives a clear idea of how the servo motor and servo drive working explained in detail and attached video have a clear idea of how servo motor works......enjoy, i hope you will like this.... :)
Mr. C.S.Satheesh, M.E.,
Servomotor
Control motors
Two Phase AC Servo Motor
Three Phase AC Servo Motor
DC Servo Motor
AC Servo Motor
Control Type Synchro.
Torque Transmission Type Synchro
Synchros
this presentation gives a clear idea of how the servo motor and servo drive working explained in detail and attached video have a clear idea of how servo motor works......enjoy, i hope you will like this.... :)
Mr. C.S.Satheesh, M.E.,
Servomotor
Control motors
Two Phase AC Servo Motor
Three Phase AC Servo Motor
DC Servo Motor
AC Servo Motor
Control Type Synchro.
Torque Transmission Type Synchro
Synchros
Content:
Introduction to Stepper Motors
Types of Stepper Motors
Main components of a stepper motor
How do these components work together
Control sequence to turn a stepper motor
Advantages and disadvantages of stepper motors
Practical Applications of stepper motor
Step Angle
Summary
For more information Email us:
Engineeringgaragevir@gmail.com
Regards;
xubair khan
In this session you will learn:
Programmable Logic Controller(PLC)
Types of PLC’s
PLC architecture
Scan cycles
Scan patterns
PLC programming
Ladder diagram programming
Latch and Unlatch
DCS architecture
For more information, visit: https://www.mindsmapped.com/courses/industrial-automation/complete-training-on-industrial-automation-for-beginners/
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.
Everywhere DC motors are used in large applications, the use of drives are very necessary for the smooth running and operating of these motors. The DC motor drives are used mainly for good speed regulation, frequent starting, braking and reversing.
Speed control in 3 phase induction motorKakul Gupta
Speed control in induction motors is required for efficient operation
Various methods of speed control through semiconductor devices:
1. Stator voltage control
2. Stator frequency control
3. Stator voltage control
4. Stator current control
5. Static Rotor Resistance Control
6. Slip Energy Recovery Control
Content:
Introduction to Stepper Motors
Types of Stepper Motors
Main components of a stepper motor
How do these components work together
Control sequence to turn a stepper motor
Advantages and disadvantages of stepper motors
Practical Applications of stepper motor
Step Angle
Summary
For more information Email us:
Engineeringgaragevir@gmail.com
Regards;
xubair khan
In this session you will learn:
Programmable Logic Controller(PLC)
Types of PLC’s
PLC architecture
Scan cycles
Scan patterns
PLC programming
Ladder diagram programming
Latch and Unlatch
DCS architecture
For more information, visit: https://www.mindsmapped.com/courses/industrial-automation/complete-training-on-industrial-automation-for-beginners/
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.
Everywhere DC motors are used in large applications, the use of drives are very necessary for the smooth running and operating of these motors. The DC motor drives are used mainly for good speed regulation, frequent starting, braking and reversing.
Speed control in 3 phase induction motorKakul Gupta
Speed control in induction motors is required for efficient operation
Various methods of speed control through semiconductor devices:
1. Stator voltage control
2. Stator frequency control
3. Stator voltage control
4. Stator current control
5. Static Rotor Resistance Control
6. Slip Energy Recovery Control
Implementation of pi, fuzzy & ann controllers to improve dynamic response...eSAT Journals
Abstract Nowadays, vector controlled induction motor drives with variable speed applications are widely used in order to achieve good dynamic performance and wide speed control. In this paper a new method of controlling technique based on Artificial Neural Network is proposed to improve the speed control of indirect vector controlled induction motor drive. Indirect vector controlled induction motor with conventional PI controller is developed and is replaced with Fuzzy logic controller to overcome the problem of overshoot occurred in conventional PI controller. To obtain quick steady state response and better speed control, ANN technique is proposed and implemented using MATLAB/Simulink. In this paper the speed, torque and stator voltage responses with conventional PI controller, Fuzzy logic controller and proposed artificial neural network based controller are compared and found that the proposed ANN based controller showed increased dynamic performance. Keywords: ANN, FLC, PI controller, IVCIM
Harnessing WebAssembly for Real-time Stateless Streaming PipelinesChristina Lin
Traditionally, dealing with real-time data pipelines has involved significant overhead, even for straightforward tasks like data transformation or masking. However, in this talk, we’ll venture into the dynamic realm of WebAssembly (WASM) and discover how it can revolutionize the creation of stateless streaming pipelines within a Kafka (Redpanda) broker. These pipelines are adept at managing low-latency, high-data-volume scenarios.
Literature Review Basics and Understanding Reference Management.pptxDr Ramhari Poudyal
Three-day training on academic research focuses on analytical tools at United Technical College, supported by the University Grant Commission, Nepal. 24-26 May 2024
We have compiled the most important slides from each speaker's presentation. This year’s compilation, available for free, captures the key insights and contributions shared during the DfMAy 2024 conference.
An Approach to Detecting Writing Styles Based on Clustering Techniquesambekarshweta25
An Approach to Detecting Writing Styles Based on Clustering Techniques
Authors:
-Devkinandan Jagtap
-Shweta Ambekar
-Harshit Singh
-Nakul Sharma (Assistant Professor)
Institution:
VIIT Pune, India
Abstract:
This paper proposes a system to differentiate between human-generated and AI-generated texts using stylometric analysis. The system analyzes text files and classifies writing styles by employing various clustering algorithms, such as k-means, k-means++, hierarchical, and DBSCAN. The effectiveness of these algorithms is measured using silhouette scores. The system successfully identifies distinct writing styles within documents, demonstrating its potential for plagiarism detection.
Introduction:
Stylometry, the study of linguistic and structural features in texts, is used for tasks like plagiarism detection, genre separation, and author verification. This paper leverages stylometric analysis to identify different writing styles and improve plagiarism detection methods.
Methodology:
The system includes data collection, preprocessing, feature extraction, dimensional reduction, machine learning models for clustering, and performance comparison using silhouette scores. Feature extraction focuses on lexical features, vocabulary richness, and readability scores. The study uses a small dataset of texts from various authors and employs algorithms like k-means, k-means++, hierarchical clustering, and DBSCAN for clustering.
Results:
Experiments show that the system effectively identifies writing styles, with silhouette scores indicating reasonable to strong clustering when k=2. As the number of clusters increases, the silhouette scores decrease, indicating a drop in accuracy. K-means and k-means++ perform similarly, while hierarchical clustering is less optimized.
Conclusion and Future Work:
The system works well for distinguishing writing styles with two clusters but becomes less accurate as the number of clusters increases. Future research could focus on adding more parameters and optimizing the methodology to improve accuracy with higher cluster values. This system can enhance existing plagiarism detection tools, especially in academic settings.
Sachpazis:Terzaghi Bearing Capacity Estimation in simple terms with Calculati...Dr.Costas Sachpazis
Terzaghi's soil bearing capacity theory, developed by Karl Terzaghi, is a fundamental principle in geotechnical engineering used to determine the bearing capacity of shallow foundations. This theory provides a method to calculate the ultimate bearing capacity of soil, which is the maximum load per unit area that the soil can support without undergoing shear failure. The Calculation HTML Code included.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Using recycled concrete aggregates (RCA) for pavements is crucial to achieving sustainability. Implementing RCA for new pavement can minimize carbon footprint, conserve natural resources, reduce harmful emissions, and lower life cycle costs. Compared to natural aggregate (NA), RCA pavement has fewer comprehensive studies and sustainability assessments.
Technical Drawings introduction to drawing of prisms
Lecture 2 Servomotors - Basics & Working
1. ICE 3015: CONTROL SYSTEM
COMPONENTS
Class 2: Servomotors – Basics &
Working
Dr. S. Meenatchisundaram
Email: meenasundar@gmail.com
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
2. Components:
• Consists of three basic components
— a controlled device (motor and driver circuit)
— a output sensor
— a feedback system.
• Controlled by a feedback signal instead of variable input signal.
• Reference signal (input or command signal) is compared with
sensor signal, and a third signal (error) produced.
• This third signal (error) acts as an input signal of controlled device.
• Primary task of a servomechanism is
to maintain the output of a system at the desired value in
the presence of disturbances.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
3. Servomotors:
• Servomotors are special electromechanical devices that produce
precise degrees of rotation.
• A servomotor is a DC or AC or brushless DC motor combined
with a position sensing device.
• Servomotors are also called control motors as they are involved
in controlling a mechanical system.
• If the motor as controlled device, associated with
servomechanism is DC motor, then it is commonly known DC
Servo Motor.
• Servomotor is a special type of motor which is automatically
operated up to certain limit for a given command with help of
error-sensing feedback to correct the performance.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
4. Servomotors:
• The servomotors are used in a closed-loop servo system as
shown in Figure.
• A reference input is sent to the servo amplifier, which controls
the speed of the servomotor.
• A feedback device is mounted on the machine, which is either an
encoder or resolver or potentiometer.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
5. Servomotors:
• This device changes mechanical motion into electrical signals
and is used as a feedback.
• This feedback is sent to the error detector, which compares the
actual operation with that of the reference input.
• If there is an error, that error is fed directly to the amplifier, which
will be used to make necessary corrections in control action.
• In many servo systems, both velocity and position are
monitored.
• Servomotors provide accurate speed, torque, and have ability of
direction control.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
7. Servo Motor Control:
• In a servo unit, there will be a small DC motor, a potentiometer,
gear arrangement and an intelligent circuitry.
• The intelligent circuitry along with the potentiometer makes the
servo to rotate according to the input (Set value).
• A small DC motor will rotate with high speed but with low torque,
will not be enough to move even a light load.
• This is where the gear system inside a servomechanism comes
into the picture.
• The gear mechanism will convert high input speed of the motor
(fast) to low output speed (slow) but with high torque, more
practical and widely applicable.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
8. Servo Motor Control:
• Consider an example of servomotor used for position control:
—a signal is given to rotate by an angle of 45°
• The shaft of the DC motor is coupled with another shaft called
output shaft, with the help of gear assembly.
• This gear assembly is used to step down the high rpm of the
motor's shaft to low rpm at the output shaft of the servo system.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
9. Servo Motor Control:
• The voltage adjusting knob of a potentiometer is so arranged with
the output shaft by means of another gear assembly.
• During rotation of the shaft, the knob also rotates and creates an
varying electrical potential according to the potentiometer.
• This signal i.e. electrical potential is increased with angular
movement of potentiometer knob along with the system shaft from
0°to 45°.
• This electrical potential or voltage is taken to the error detector
feedback amplifier along with the input reference commends i.e.
input signal voltage.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
10. Servo Motor Control:
• As the angle of rotation of the shaft increases from 0o to 45o the
voltage from potentiometer increases.
• At 45o this voltage reaches to a value which is equal to the given
input command voltage to the system.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
11. Servo Motor Control:
• As at this position of the shaft, there is no difference between the
signal voltage coming from the potentiometer and reference input
voltage (command signal) to the system, the output voltage of the
amplifier becomes zero.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
12. Servo Motor Control:
• As per the picture given above the output electrical voltage signal
of the amplifier, acts as input voltage of the DC motor.
• Hence, the motor will stop rotating after the shaft rotates by 45o.
• The motor will be at this rest position until another command is
given to the system for further movement of the shaft in the
desired direction.
• NB: Although in practical servo motor control system,
instead of using simple potentiometer, digital or analog
position sensor encoders are used.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
13. Continuous Rotation Servomotors:
• Continuous rotation servo motors are actually a modified version
of what the servos are actually meant to do, that is, control the
shaft position.
• The 360o rotation servos are actually made by changing certain
mechanical connections inside the servo.
• With the continuous rotation servo you can only control the
direction and speed of the servo, but not the position.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
14. Feedback sensor:
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
• Resolver
measures absolute
shaft orientation
15. Feedback sensor:
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
• Potentiometer
measures orientation by
varying resistance, it has
a range of motion < 360º
16. Feedback sensor:
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018
Optical Encoders
Detecting motor shaft orientation
18. Summary:
• The shaft of the servo is connected to a potentiometer.
• The circuitry inside the servo, to which the potentiometer is
connected, knows the position of the servo.
• The current position will be compared with the desired position
continuously with the help of an Error Detection Amplifier.
• If a mismatch is found, then an error signal is provided at the
output of the error amplifier and the shaft will rotate to go the exact
location required.
• Once the desired location is reached, it stops and waits.
• Feedback sensor can be resolver or encoder or a potentiometer.
Control System Components (ICE 3015)
Dr. S.Meenatchisundaram, MIT, Manipal, Aug – Nov 2018