Basic Electrical and Electronics Engineering

12

Transducers

TOPICS DISCUSSED

• Use of transducers in measurement system

• Classification of transducers

• Characteristics of transducers

• Linear variable differential transducer

• Capacitive transducer

• Inductive transducer

• Potentiometric transducer

• Strain gauge transducer

• Thermistor

• Thermocouples

• Hall effect transducer

• Photoelectric transducer

• Selection of transducers

12.1 Introduction

When we are to measure any non-electrical quantity like displacement, pressure, temperature, strain, etc., we first convert the measuring quantity into a proportional electrical signal, i.e., voltage or current. This is done with the help of devices called transducers. Therefore, we can state that a transducer is a device which converts a non-electrical quantity ...