Question

The tacho meter has sensitivity of 5V/1000rpm. The gain constant of the tacho meter is:

(a) 0.48V/rad/sec

(b) 0.048V/rad/sec

(c) 4.8V/rad/sec

(d) 48V/rad/sec

I got this question in class test.

Question is taken from State Variables and Linear Discrete-Time Systems topic in division State Variable Analysis and Design of Control Systems

Answer 1

Right choice is (b) 0.048V/rad/sec

The explanation is: Gain constant = 5*60/2p*1000(V/rad/sec)

0.048 V/rad/sec.