Question

List four input transducers and describe how they are used.

Short answer

The four input transducers are photo-diode, thermocouple, fuel cell, and microphone.

Step-by-step solution

Given Information

List of transducers and explanation of their use.

Transducers

Transducers are used to convert one form of energy to another form of energy or to convert physical or chemical information to an electrical signal or vice-versa. They can further be divided into input transducers and output transducers.

Input transducers convert physical or chemical information into electrical signals.

Photo-diodes, thermocouples, Fuel cells, and microphones are examples of input transducers.

Use of the listed input transducers

Photo-diode: This is a type of input transducer that converts light photons into electrical current.

Fuel cell: It is a transducer in which the energy produced by the reactions which take place inside the fuel cell is converted into electrical energy.

Thermocouple: It is a transducer in which temperature is converted into a specific

voltage.

Microphone: It is a transducer that converts sound to electrical signals like current.