What is a AC Potentiometer?

What is a AC Potentiometer ?

AC Potentiometer Definition

An AC potentiometer measures unknown voltage by balancing it with a known voltage, including both magnitude and phase.

Types of AC Potentiometers

• Polar type

• Coordinate type

Polar Type Potentiometer

Measures magnitude and phase angle using separate scales and components like a phase-shifting transformer.

Coordinate Type Potentiometer

Measures in-phase and quadrature components of the unknown voltage using two potentiometers in one circuit.

Applications

• Measurement of self-inductance

• Calibration of voltmeter

• Calibration of Ammeter

• Calibration of watt meter