DYNAMIC CHARACTERISTICS OF TRANSDUCERS

• The dynamic characteristics of a transducer refers to the performance of the transducer when. it is subjected to time-varying input.

• 'I'he number of parameters required to define tho dynamic behavior of a transducer is decided by the group to which the transducer belongs.

• The transducers can. be .categorized into

1. Zero-order transducers

2. first-order" transducers'

8. Second-order transducers

4:. Higher-order transducers

Zero-order transducer

The input .. output relationship of a zero-order transducer is given by

Y (t)= Kx (t)

where,

x (t). ~ input

y (t) ~ output

K ~ Static - sensitivity of the transducer

• The transfer function ofthe zero-order transducer is given by

• ThisequatioIi shows that the output varies in ,'thesame,'way 'as the "Input.

• Hence, a zero-order transducer. response, represents ideal dynamic' , performance.