Name the different torque and their function in measuring instrument.

Name the different torque and their function in measuring instrument.
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1 Answer

Answer :

List of torques in analog instruments: 

1. Deflecting torque 

2. Controlling / restraining torque. 

3. Damping torque. 


1. Deflecting torque: 

- To create deflection of pointer proportional to the quantity to be measured; this is normally electric current. 


2. Controlling / restraining torque: 

- To restrict the motion of pointer/spindle and stop the pointer at the relevant position to get correct reading. 

- To bring back pointer to zero position when the quantity under measurement is removed. 


3. Damping torque: 

- To stop pointer/spindle at the final deflected position. 

- Bring the pointer to standstill quickly. 

- To minimize oscillations about final position. 

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