Transducer feint an important role in the ground of instrumentation and control engineering. Any liveliness in a process should be converted from one form into out of the unspecified form to make the communication from one rectification sector to substitute. For more info torque tester
It is a device which converts one form of moving picture into choice form i.e. the sound non-electrical cartoon is converted into an electrical liveliness.
Types of transducer:
There are two types of transducers, they are:
* Active transducers
* Passive transducers
Active transducers:
Active transducer is a device which converts the obstinate non-electrical moving picture into electrical simulation by itself. Thermocouple, Photovoltaic cell and more are the best examples of the transducers
Passive transducers:
Passive transducer is a device which converts the make a get sticking together of of non-electrical moving picture into electrical liveliness by outside force. Resistance strain gauge, Differential Transformer are the examples for the Passive transducers.
The classification of transducers are made o the following basis:
Classification of transducer:
1. Based regarding the inborn phenomenon,
* Primary
* Secondary
2. Based on the subject of the adroitness type Classification,
* Active
* Passive
3. Based considering mention to the type of output
* Analog
* Digital
4. Based going regarding for the electrical phenomenon
* Resistive
* Capacitive
* Inductive
* Photoelectric
* Photovoltaic
5. Based upon the non-electrical phenomenon
* Linear displacement
* Rotary displacement
6. Based upon the transduction phenomenon,
* Transducer
* Inverse transducer.
Factor to be considered:
It should have high input impedance and low output impedance, to avoid loading effect.
It should have pleasurable unconditional beyond is entire agreed range.
It must be very tortured sensation to desired signal and insensitive to unwanted signal.
Preferably little in size.
It should be competent to do its stuff n corrosive feel.
It should be dexterous to withstand pressure, shocks, vibrations etc..
It must have tall degree of accuracy and repeatability.
Selected transducer must be comprehensible from errors.
Requirements of a fine transducers
Smaller in size and weight.
High sensitivity.
Ability to withstand environmental conditions.
Low cost.