Transducer:
The transducer is the electronic device which converts one form of energy into another form of energy. In electronic system the transducer converts non electrical signal (physical) into electrical signal.
Transducer
Classification of transducer:
The transducer can be classified as,
- Primary transducer
The primary transducer is also known as detector or sensor. It senses a physical parameter such as pressure, humidity, temperature etc and converts it into suitable physical parameter which is readable.
- Secondary transducer
The secondary transducer converts the output of primary transducer into electrical signal.
- Analog transducer
The analog transducer converts the input signal into an analog output which is continuous function of time.
- Digital transducer
The digital transducer converts the input signal into an electrical output which is in the form of pulses.
- Electrical transducer
The electrical transducers are that transducer which sense the physical parameter and converts it into the electrical signal.
- Mechanical transducer
The mechanical transducers are that transducer which converts the one form of physical quantity into another form of physical quantity.
- Active transducer
The active transducers are also called as self generating transducer. It is that type of transducer which does not require any external (auxiliary) power supply to produce output.
- Passive transducer
The passive transducer is also known as externally powered transducer. It is that type of transducer which requires an auxiliary power supply to produce output.