Electrical Engineering ⇒ Topic : Indicating Instruments

INDICATING INSTRUMENTS

In these instruments there must be a pointer moving over a calibrated scale. The pointer is attached to the system that is pivoted on jewelled bearings. The following torques are mandatory for the satisfactory operation of these instruments

Indicating Type Instruments:- Indicating instruments are of the following types :

1. Moving iron instruments
2. Moving coil instruments
3. Dynamometer type instruments
4. Hot wire instruments
5. Electrostatic type instruments
6. Induction type instruments