Instrumentation Interview Question:

Name different parts of a pressure gauge? Explain the use of hair spring in the pressure gauge?

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Pressure gauge includes following components:
a. ‘C' type bourdon tube.
b. Connecting link
c. Sector gear
d. Pinion Gear
e. Hair spring
f. Pointer
g. Dial

Use of hair spring: Hair spring is responsible for controlling torque. It is also used to eliminate any play into linkages.
Submitted by: Administrator