SlideShare a Scribd company logo
1 of 21
Download to read offline
Classificationof Transducers
Subject: EMI
Instructor:
Engr. Waheed Ur Rahman
Transduce
rs
• A Transducer is a device which converts one
form of energy into another form.
• Alternatively, a Transducer is defined as a device
which provides usable output response to a
specific input measured which may be a physical
quantity.
• A Transducer can also be defined as a device
when actuated by energy in one system supplies
energy in the same form or in another form to a
Classification of
Transducers
• Transducers may be classified according to their
application, method of energy conversion, nature of
the output signal, and so on.
•
Transducers
On The Basis
of principle
Used
Active/Passive Primary/Secondar
y
Analog/Digital
Transducers/
Inverse
Transducers
Capacitiv
e
Inductive
Resistive
Active and Passive
Transducers
• Active transducers :
• These transducers do not need any external source of power for
their operation. Therefore they are also called as self generating
type transducers.
I. The active transducer are self generating devices which operate
under the energy conversion principle.
II. As the output of active transducers we get an equivalent
electrical output signal e.g. temperature or strain to electric
potential, without any external source of energy being used
Classification of Active
Transducers
Example of active
transducers
• Piezoelectric Transducer- When an external
force is applied on to a quartz crystal, there will be a
change in the voltage generated across the surface.
This change is measured by its corresponding value
of sound or vibration.
Passive Transducers
• These transducers need external source of power for
their operation. So they are not self generating type
transducers.
• A DC power supply or an audio frequency generator is
used as an external power source.
• These transducers produce the output signal in the
form of variation in electrical parameter like resistance,
capacitance or inductance.
• Examples – Thermistor, Potentiometer type
transducer
Primary and Secondary
Transducers
• Some transducers contain the mechanical as well as
electrical device. The mechanical device converts the
physical quantity to be measured into a mechanical
signal. Such mechanical device are called as the
primary transducers, because they deal with the
physical quantity to be measured.
• The electrical device then convert this mechanical
signal into a corresponding electrical signal. Such
electrical device are known as secondary transducers.
Example of Primary and secondary
transducer
Primary
transducer
Displacement
voltage
Secondary
transducer
According to Transduction
principle used
Capacitive
Transduction:
• Here, the measurand is converted into a
change in capacitance.
• A change in capacitance occurs either by
changing the distance between the two plates
or by changing the dielectric.
d
Area=
A
Electromagnetic
transduction:
• In electromagnetic transduction, the measurand is
converted to voltage induced in conductor by change
in the magnetic flux, in absence of excitation.
• The electromagnetic transducer are self generating
active transducers
• The motion between a piece of magnet and an
electromagnet is responsible for the change in flux
Inductance Transduction:
• In inductive transduction, the measurand is converted
into a change in the self inductance of a single coil. It
is achieved by displacing the core of the coil that is
attached to a mechanical sensing element
Piezoelectric Transduction:
• In piezoelectric induction the measurand is converted
into a change in electrostatic charge q or voltage V
generated by crystals when it is mechanically
stressed.
Photovoltaic
Transduction:
• In photovoltaic transduction the measurand is
converted to voltage generated when the
junction between dissimilar material is
illuminated.
Photoconductive
Transduction:
• In photoconductive transduction the
measurand is converted to change in resistance
of semiconductor material by the change in
light incident on the material.
Analog and Digital
Transducers
Analog transducers:
• These transducers convert the input quantity into an
analog output which is a continuous function of time.
• Thus a strain gauge, an L.V.D.T., a thermocouple or a
thermistor may be called as Analog Transducers as they
give an output which is a continuous function of time.
Digital Transducers:
• These transducers convert the input quantity into an
electrical output which is in the form of pulses and its
output is represented by 0 and 1.
Transducer and Inverse
Transducer
Transducer:
• Transducers convert non electrical quantity to
electrical quantity.
Inverse Transducer:
• Inverse transducers convert electrical quantity
to a non electrical quantity. A piezoelectric
crystal acts as an inverse transducer because
when a voltage is applied across its surfaces, it
changes its dimensions causing a mechanical
displacement.
What is MEMS?
MEMS is short for Micro Electro-Mechanical Systems. It
is a technology associated with manufacturing of
microscale devices like Sensors, Transducers, Actuators,
Gears, Pumps, Switches etc.
In other words, MEMS are microscopic integrated devices
that are a combination of electronics, electrical and
mechanical elements, all working together for a single
functional requirement using a technology called
Microsystems Technology (MST).
Different Types of MEMS Sensors
One of the major implementors of MEMS technology is the
cars use a lot of sensors and most of them are MEMS based
The following is a list of MEMS Sensors that are used in a modern
•Accelerometers – For Electronic Stability Control and Airbag
•Inertial Measurement Units or IMU (they are combination of MEMS
MEMS Gyroscope) – For measuring yaw, pitch and roll for
•Magnetometer – For direction used in navigation.
•Pressure and Inertial Sensor – For braking control.
•Pressure Sensor – Tire Pressure Monitoring System.
•Airflow Sensor – Air intake monitoring.
•Fuel Sensor – Fuel Level Indicator.
•Impact and Crash Sensor – Impact detection and Airbag
•MEMS Microphone – For communication and Noise Cancellation.
•Temperature Sensor – For Automatic Climate Control and Engine
Monitoring.
•There are many other MEMS based devices for various
Some of the sectors of applications of MEMS based Sensors are
mentioned below:
•Automotive
•Chemical and Pharmaceutical
•Aircraft
•Industrial Automation and Manufacturing
•Defense, Space and Aeronautical
•Environmental and Health Sciences
•Computing and Communications
•Consumer Products

More Related Content

Similar to classification-of-transducer-converted (1).pptx

Similar to classification-of-transducer-converted (1).pptx (20)

Ppt1
Ppt1Ppt1
Ppt1
 
BIOMEDICAL SENSORS AND MEASUREMENT SYSTEMS.ppt
BIOMEDICAL SENSORS AND MEASUREMENT SYSTEMS.pptBIOMEDICAL SENSORS AND MEASUREMENT SYSTEMS.ppt
BIOMEDICAL SENSORS AND MEASUREMENT SYSTEMS.ppt
 
Transducers.pptx
Transducers.pptxTransducers.pptx
Transducers.pptx
 
Ankit.thapliyal ppt
Ankit.thapliyal pptAnkit.thapliyal ppt
Ankit.thapliyal ppt
 
Transducers
Transducers Transducers
Transducers
 
Transducer
TransducerTransducer
Transducer
 
Transducer
TransducerTransducer
Transducer
 
Sensors & Transducers- Introduction & Types.pdf
Sensors & Transducers- Introduction & Types.pdfSensors & Transducers- Introduction & Types.pdf
Sensors & Transducers- Introduction & Types.pdf
 
Transducers (1)
Transducers (1)Transducers (1)
Transducers (1)
 
Transducers ppt
Transducers pptTransducers ppt
Transducers ppt
 
9343197.ppt
9343197.ppt9343197.ppt
9343197.ppt
 
Transducer PPT..ppt
Transducer PPT..pptTransducer PPT..ppt
Transducer PPT..ppt
 
unit5.pdf
unit5.pdfunit5.pdf
unit5.pdf
 
Transducers
TransducersTransducers
Transducers
 
What is Piezzo Electric Sensors.ppt
What is Piezzo Electric Sensors.pptWhat is Piezzo Electric Sensors.ppt
What is Piezzo Electric Sensors.ppt
 
introduction to mechatronics
introduction to mechatronicsintroduction to mechatronics
introduction to mechatronics
 
66_15575_EC410_2014_1__2_1_LECTURE 9.ppt
66_15575_EC410_2014_1__2_1_LECTURE 9.ppt66_15575_EC410_2014_1__2_1_LECTURE 9.ppt
66_15575_EC410_2014_1__2_1_LECTURE 9.ppt
 
Transducers
TransducersTransducers
Transducers
 
Transducers
TransducersTransducers
Transducers
 
Classification of transducer
Classification of transducerClassification of transducer
Classification of transducer
 

Recently uploaded

applications of diffrentiability in real life.pptx
applications of diffrentiability in real life.pptxapplications of diffrentiability in real life.pptx
applications of diffrentiability in real life.pptxananditam30
 
SOFTWARE ESTIMATION COCOMO AND FP CALCULATION
SOFTWARE ESTIMATION COCOMO AND FP CALCULATIONSOFTWARE ESTIMATION COCOMO AND FP CALCULATION
SOFTWARE ESTIMATION COCOMO AND FP CALCULATIONSneha Padhiar
 
Road Development plans of India-Transportation Engineering
Road Development plans of India-Transportation EngineeringRoad Development plans of India-Transportation Engineering
Road Development plans of India-Transportation EngineeringSayli Madhale
 
Guardians of E-Commerce: Harnessing NLP and Machine Learning Approaches for A...
Guardians of E-Commerce: Harnessing NLP and Machine Learning Approaches for A...Guardians of E-Commerce: Harnessing NLP and Machine Learning Approaches for A...
Guardians of E-Commerce: Harnessing NLP and Machine Learning Approaches for A...IJAEMSJORNAL
 
Plastifloor Park Deck Waterproofing System_Flyer
Plastifloor Park Deck Waterproofing System_FlyerPlastifloor Park Deck Waterproofing System_Flyer
Plastifloor Park Deck Waterproofing System_FlyerPlasti-Chemie GmbH
 
Introduction of Object Oriented Programming Language using Java. .pptx
Introduction of Object Oriented Programming Language using Java. .pptxIntroduction of Object Oriented Programming Language using Java. .pptx
Introduction of Object Oriented Programming Language using Java. .pptxPoonam60376
 
Madani.store - Planning - Interview Questions
Madani.store - Planning - Interview QuestionsMadani.store - Planning - Interview Questions
Madani.store - Planning - Interview QuestionsKarim Gaber
 
Network Enhancements on BitVisor for BitVisor Summit 12
Network Enhancements on BitVisor for BitVisor Summit 12Network Enhancements on BitVisor for BitVisor Summit 12
Network Enhancements on BitVisor for BitVisor Summit 12cjchen22
 
Submerged Combustion, Explosion Flame Combustion, Pulsating Combustion, and E...
Submerged Combustion, Explosion Flame Combustion, Pulsating Combustion, and E...Submerged Combustion, Explosion Flame Combustion, Pulsating Combustion, and E...
Submerged Combustion, Explosion Flame Combustion, Pulsating Combustion, and E...Ayisha586983
 
WAVELET SCATTERING TRANSFORM FOR ECG CARDIOVASCULAR DISEASE CLASSIFICATION
WAVELET SCATTERING TRANSFORM FOR ECG CARDIOVASCULAR DISEASE CLASSIFICATIONWAVELET SCATTERING TRANSFORM FOR ECG CARDIOVASCULAR DISEASE CLASSIFICATION
WAVELET SCATTERING TRANSFORM FOR ECG CARDIOVASCULAR DISEASE CLASSIFICATIONgerogepatton
 
Design and Analysis of Algorithms Lecture Notes
Design and Analysis of Algorithms Lecture NotesDesign and Analysis of Algorithms Lecture Notes
Design and Analysis of Algorithms Lecture NotesSreedhar Chowdam
 
KCD Costa Rica 2024 - Nephio para parvulitos
KCD Costa Rica 2024 - Nephio para parvulitosKCD Costa Rica 2024 - Nephio para parvulitos
KCD Costa Rica 2024 - Nephio para parvulitosVictor Morales
 
AntColonyOptimizationManetNetworkAODV.pptx
AntColonyOptimizationManetNetworkAODV.pptxAntColonyOptimizationManetNetworkAODV.pptx
AntColonyOptimizationManetNetworkAODV.pptxLina Kadam
 
Detection&Tracking - Thermal imaging object detection and tracking
Detection&Tracking - Thermal imaging object detection and trackingDetection&Tracking - Thermal imaging object detection and tracking
Detection&Tracking - Thermal imaging object detection and trackinghadarpinhas1
 
Cost estimation approach: FP to COCOMO scenario based question
Cost estimation approach: FP to COCOMO scenario based questionCost estimation approach: FP to COCOMO scenario based question
Cost estimation approach: FP to COCOMO scenario based questionSneha Padhiar
 
Theory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdfTheory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdfShreyas Pandit
 
Madani.store - Planning - Interview Questions
Madani.store - Planning - Interview QuestionsMadani.store - Planning - Interview Questions
Madani.store - Planning - Interview QuestionsKarim Gaber
 
Overview of IS 16700:2023 (by priyansh verma)
Overview of IS 16700:2023 (by priyansh verma)Overview of IS 16700:2023 (by priyansh verma)
Overview of IS 16700:2023 (by priyansh verma)Priyansh
 
TEST CASE GENERATION GENERATION BLOCK BOX APPROACH
TEST CASE GENERATION GENERATION BLOCK BOX APPROACHTEST CASE GENERATION GENERATION BLOCK BOX APPROACH
TEST CASE GENERATION GENERATION BLOCK BOX APPROACHSneha Padhiar
 

Recently uploaded (20)

applications of diffrentiability in real life.pptx
applications of diffrentiability in real life.pptxapplications of diffrentiability in real life.pptx
applications of diffrentiability in real life.pptx
 
SOFTWARE ESTIMATION COCOMO AND FP CALCULATION
SOFTWARE ESTIMATION COCOMO AND FP CALCULATIONSOFTWARE ESTIMATION COCOMO AND FP CALCULATION
SOFTWARE ESTIMATION COCOMO AND FP CALCULATION
 
Road Development plans of India-Transportation Engineering
Road Development plans of India-Transportation EngineeringRoad Development plans of India-Transportation Engineering
Road Development plans of India-Transportation Engineering
 
Guardians of E-Commerce: Harnessing NLP and Machine Learning Approaches for A...
Guardians of E-Commerce: Harnessing NLP and Machine Learning Approaches for A...Guardians of E-Commerce: Harnessing NLP and Machine Learning Approaches for A...
Guardians of E-Commerce: Harnessing NLP and Machine Learning Approaches for A...
 
Plastifloor Park Deck Waterproofing System_Flyer
Plastifloor Park Deck Waterproofing System_FlyerPlastifloor Park Deck Waterproofing System_Flyer
Plastifloor Park Deck Waterproofing System_Flyer
 
Introduction of Object Oriented Programming Language using Java. .pptx
Introduction of Object Oriented Programming Language using Java. .pptxIntroduction of Object Oriented Programming Language using Java. .pptx
Introduction of Object Oriented Programming Language using Java. .pptx
 
Madani.store - Planning - Interview Questions
Madani.store - Planning - Interview QuestionsMadani.store - Planning - Interview Questions
Madani.store - Planning - Interview Questions
 
Network Enhancements on BitVisor for BitVisor Summit 12
Network Enhancements on BitVisor for BitVisor Summit 12Network Enhancements on BitVisor for BitVisor Summit 12
Network Enhancements on BitVisor for BitVisor Summit 12
 
Submerged Combustion, Explosion Flame Combustion, Pulsating Combustion, and E...
Submerged Combustion, Explosion Flame Combustion, Pulsating Combustion, and E...Submerged Combustion, Explosion Flame Combustion, Pulsating Combustion, and E...
Submerged Combustion, Explosion Flame Combustion, Pulsating Combustion, and E...
 
WAVELET SCATTERING TRANSFORM FOR ECG CARDIOVASCULAR DISEASE CLASSIFICATION
WAVELET SCATTERING TRANSFORM FOR ECG CARDIOVASCULAR DISEASE CLASSIFICATIONWAVELET SCATTERING TRANSFORM FOR ECG CARDIOVASCULAR DISEASE CLASSIFICATION
WAVELET SCATTERING TRANSFORM FOR ECG CARDIOVASCULAR DISEASE CLASSIFICATION
 
Design and Analysis of Algorithms Lecture Notes
Design and Analysis of Algorithms Lecture NotesDesign and Analysis of Algorithms Lecture Notes
Design and Analysis of Algorithms Lecture Notes
 
KCD Costa Rica 2024 - Nephio para parvulitos
KCD Costa Rica 2024 - Nephio para parvulitosKCD Costa Rica 2024 - Nephio para parvulitos
KCD Costa Rica 2024 - Nephio para parvulitos
 
Versatile Engineering Construction Firms
Versatile Engineering Construction FirmsVersatile Engineering Construction Firms
Versatile Engineering Construction Firms
 
AntColonyOptimizationManetNetworkAODV.pptx
AntColonyOptimizationManetNetworkAODV.pptxAntColonyOptimizationManetNetworkAODV.pptx
AntColonyOptimizationManetNetworkAODV.pptx
 
Detection&Tracking - Thermal imaging object detection and tracking
Detection&Tracking - Thermal imaging object detection and trackingDetection&Tracking - Thermal imaging object detection and tracking
Detection&Tracking - Thermal imaging object detection and tracking
 
Cost estimation approach: FP to COCOMO scenario based question
Cost estimation approach: FP to COCOMO scenario based questionCost estimation approach: FP to COCOMO scenario based question
Cost estimation approach: FP to COCOMO scenario based question
 
Theory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdfTheory of Machine Notes / Lecture Material .pdf
Theory of Machine Notes / Lecture Material .pdf
 
Madani.store - Planning - Interview Questions
Madani.store - Planning - Interview QuestionsMadani.store - Planning - Interview Questions
Madani.store - Planning - Interview Questions
 
Overview of IS 16700:2023 (by priyansh verma)
Overview of IS 16700:2023 (by priyansh verma)Overview of IS 16700:2023 (by priyansh verma)
Overview of IS 16700:2023 (by priyansh verma)
 
TEST CASE GENERATION GENERATION BLOCK BOX APPROACH
TEST CASE GENERATION GENERATION BLOCK BOX APPROACHTEST CASE GENERATION GENERATION BLOCK BOX APPROACH
TEST CASE GENERATION GENERATION BLOCK BOX APPROACH
 

classification-of-transducer-converted (1).pptx

  • 2. Transduce rs • A Transducer is a device which converts one form of energy into another form. • Alternatively, a Transducer is defined as a device which provides usable output response to a specific input measured which may be a physical quantity. • A Transducer can also be defined as a device when actuated by energy in one system supplies energy in the same form or in another form to a
  • 3. Classification of Transducers • Transducers may be classified according to their application, method of energy conversion, nature of the output signal, and so on. • Transducers On The Basis of principle Used Active/Passive Primary/Secondar y Analog/Digital Transducers/ Inverse Transducers Capacitiv e Inductive Resistive
  • 4. Active and Passive Transducers • Active transducers : • These transducers do not need any external source of power for their operation. Therefore they are also called as self generating type transducers. I. The active transducer are self generating devices which operate under the energy conversion principle. II. As the output of active transducers we get an equivalent electrical output signal e.g. temperature or strain to electric potential, without any external source of energy being used
  • 6. Example of active transducers • Piezoelectric Transducer- When an external force is applied on to a quartz crystal, there will be a change in the voltage generated across the surface. This change is measured by its corresponding value of sound or vibration.
  • 7. Passive Transducers • These transducers need external source of power for their operation. So they are not self generating type transducers. • A DC power supply or an audio frequency generator is used as an external power source. • These transducers produce the output signal in the form of variation in electrical parameter like resistance, capacitance or inductance. • Examples – Thermistor, Potentiometer type transducer
  • 8. Primary and Secondary Transducers • Some transducers contain the mechanical as well as electrical device. The mechanical device converts the physical quantity to be measured into a mechanical signal. Such mechanical device are called as the primary transducers, because they deal with the physical quantity to be measured. • The electrical device then convert this mechanical signal into a corresponding electrical signal. Such electrical device are known as secondary transducers.
  • 9. Example of Primary and secondary transducer Primary transducer Displacement voltage Secondary transducer
  • 11. Capacitive Transduction: • Here, the measurand is converted into a change in capacitance. • A change in capacitance occurs either by changing the distance between the two plates or by changing the dielectric. d Area= A
  • 12. Electromagnetic transduction: • In electromagnetic transduction, the measurand is converted to voltage induced in conductor by change in the magnetic flux, in absence of excitation. • The electromagnetic transducer are self generating active transducers • The motion between a piece of magnet and an electromagnet is responsible for the change in flux
  • 13. Inductance Transduction: • In inductive transduction, the measurand is converted into a change in the self inductance of a single coil. It is achieved by displacing the core of the coil that is attached to a mechanical sensing element Piezoelectric Transduction: • In piezoelectric induction the measurand is converted into a change in electrostatic charge q or voltage V generated by crystals when it is mechanically stressed.
  • 14. Photovoltaic Transduction: • In photovoltaic transduction the measurand is converted to voltage generated when the junction between dissimilar material is illuminated.
  • 15. Photoconductive Transduction: • In photoconductive transduction the measurand is converted to change in resistance of semiconductor material by the change in light incident on the material.
  • 16. Analog and Digital Transducers Analog transducers: • These transducers convert the input quantity into an analog output which is a continuous function of time. • Thus a strain gauge, an L.V.D.T., a thermocouple or a thermistor may be called as Analog Transducers as they give an output which is a continuous function of time. Digital Transducers: • These transducers convert the input quantity into an electrical output which is in the form of pulses and its output is represented by 0 and 1.
  • 17. Transducer and Inverse Transducer Transducer: • Transducers convert non electrical quantity to electrical quantity. Inverse Transducer: • Inverse transducers convert electrical quantity to a non electrical quantity. A piezoelectric crystal acts as an inverse transducer because when a voltage is applied across its surfaces, it changes its dimensions causing a mechanical displacement.
  • 18. What is MEMS? MEMS is short for Micro Electro-Mechanical Systems. It is a technology associated with manufacturing of microscale devices like Sensors, Transducers, Actuators, Gears, Pumps, Switches etc. In other words, MEMS are microscopic integrated devices that are a combination of electronics, electrical and mechanical elements, all working together for a single functional requirement using a technology called Microsystems Technology (MST).
  • 19.
  • 20. Different Types of MEMS Sensors One of the major implementors of MEMS technology is the cars use a lot of sensors and most of them are MEMS based The following is a list of MEMS Sensors that are used in a modern •Accelerometers – For Electronic Stability Control and Airbag •Inertial Measurement Units or IMU (they are combination of MEMS MEMS Gyroscope) – For measuring yaw, pitch and roll for •Magnetometer – For direction used in navigation. •Pressure and Inertial Sensor – For braking control. •Pressure Sensor – Tire Pressure Monitoring System. •Airflow Sensor – Air intake monitoring. •Fuel Sensor – Fuel Level Indicator. •Impact and Crash Sensor – Impact detection and Airbag •MEMS Microphone – For communication and Noise Cancellation. •Temperature Sensor – For Automatic Climate Control and Engine Monitoring. •There are many other MEMS based devices for various
  • 21. Some of the sectors of applications of MEMS based Sensors are mentioned below: •Automotive •Chemical and Pharmaceutical •Aircraft •Industrial Automation and Manufacturing •Defense, Space and Aeronautical •Environmental and Health Sciences •Computing and Communications •Consumer Products