Various Types of Transducer Example with Applications




Strain Gauge, Strain Gauge diagram, Transducer Types



There are various types of Transducer are available. Each of them has different applications, advantages, and disadvantages. In modern days, all sensing devices, automation devices use Transducer for their operation. Even an electronic device may contain various types of transducer together. Here we will discuss Various Types of Transducer Example with their Applications.

A Transducer is a device which can convert one form of energy to another form. A transducer mainly used to the transformation of energy for measurement and sensing purpose.





Transducer Types



There are different types of transducer available and they are classified based on many things,


Types of Transducer based on Power Supply



There are some transducers which need an external power supply for their operation and some transducer available which does not need an external power supply. So based on the Power supply there are two types of transducer,


1. Active Transducer


There are some transducers are present which does not need any external power source, they are called Active Transducer. This types of transducers can create an electrical signal which further used as an output signal.


2. Passive Transducer


There are some Transducers are present which need an external power supply for their operation, they are called Passive Transducer.





Types of Transducer based on Measurement



A particular transducer cannot be used to measure all quantity. We need to use different transducer for different measurement purpose. Based on the measurement Transducer types are given below,

1. Temperature Transducer


They are used to measure temperature.

2. Pressure Transducer


They are used to measure pressure such as mechanical pressure, Air pressure, liquid pressure etc.

3. Displacement Transducer


This type of transducers is used to measure the displacement of any moving object.

4. Flow Transducer


This types of transducers are used to measure the flow of liquid or air.


Types of Transducer based on Principle of Operation


   1. Photovoltaic
   2. Piezoelectric
   3. Chemical
   4. Electromagnetic
   5. Mutual Induction
   6. Thermoelectric
   7. Electrostatic
   8. Electromechanical
   9. Electrochemical
  10. Radioacoustic






Example of Transducer


Example of Active Transducer


Thermocouple, Piezoelectric Transducer, Some capacitive transducer, Photodiode

Examples of Passive Transducer


LDR(Light Depending Resistor), Thermistor, LVDT



LVDT, LVDT application, Transducer Application


Example of Temperature Transducer


Thermistor, Thermocouple

Pressure Transducer Example


Piezoelectric Transducer, Diaphragm, Strain Gauge, Bellows

Displacement Transducer Example


LVDT(Linear Variable Differential Transformer or Transducer), Potentiometer


The other examples of Transducer are Microphone, Loudspeaker, Photoresistors, Phototransistors, CRT(Cathode Ray Tubes)





Transducer Application


Application of Temperature Transducer


1. Temperature transducers are used in modern automatic temperature control air conditioner.
2. They are used automatic temperature control cooling system in the industry.
3. they are also used in the heating and ventilation system.

Application of Pressure Transducer


1. Pressure transducers are used in weight machines.
2. Pressure transducer such as Hydrophone is used for water pressure measurement.
3. Pressure transducer such as Gramophone is used for measurement of air pressure.


Application of Displacement Transducer


1. Displacement transducer such as Potentiometer, LVDT are used for displacement. 
2. Displacement transducers are used in analog speed meter.





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Various Types of Transducer Example with Applications Various Types of Transducer Example with Applications Reviewed by ETechnoG on 21:07 Rating: 5
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