Thursday, May 13, 2010

What are Transducers ?

        Transducers play an important role in the field of instrumentation and control engineering. Any energy in a process should be converted from one form into another form to make the communication from one rectification sector to another.

            Transducer is a device which converts one form of energy into another form i.e,. the given non-electrical energy is converted into an electrical energy.

Types of transducers:

There are two types of transducers, they are:

  • Active transducers
  • Passive transducers
Active transducers:
Active transducer is a device which converts the given non-electrical energy into electrical energy by itself. Thermocouple, Photovoltaic cell and more are the best examples of the transducers


Passive transducers:
Passive transducer is a device which converts the given non-electrical energy into electrical energy by external force. Resistance strain gauge, Differential Transformer are the examples for the Passive transducers.