Question

Which kind of transducers are used to produce electric signal by mechanical force explain in detail (plz full explanation)

Answer 1

The transducers that convert mechanical force into electrical output are called "Electrical Transducers".

The advantages of using an electrical transducers are

• Amplification and attenuation is easy
• Mass-inertia effect is minimized
• Friction effect is minimized
• Output can be modified in order to meet requirements of display unit
• Can be measured remotely

Electrical transducers can be further classified as Active and Passive transducers.
Passive electrical tranducers consists of Resistive Transducers,Capacitive transducers and Inductive transducers.
A well known example of resistive transducers are Resistive Thermometers.It has various advantages like accurate measurements,wide working range without loss of accuracy etc.
Capacitive transducers includes the Capacitive moisture transducers,Capacitive displacement transducers and Capacitive thickness transducers.
Inductive transducers convert Physical motion(Mechanical force) into inductance. The examples of this includes Inductive Displacement transducers Inductive thickness transducers etc.

Active Electrical Transducers include the Photoelectric Transducers which includes Photoconductive Transducers,Photoemissive Transducers ,Photovoltaic Force Transducers etc. Other examples of the Active electric transducers include ,Magnetostrictive Transducers , Hall-Effect Transducers ,Piezoelectric Transducers which includes Piezoelectric force transducers.

When the piezoelectric transducers experience mechanical stress or forces they produce electric voltage.This is possible by making use of peizoelectic material.The electrical voltage that is produced is found to be directly proportional to the applied mechanical force.