Analog meter

Definition

An analog meter is a device that measures electrical quantities such as voltage, current, or resistance using a needle and dial. It provides a continuous reading, making it useful for observing gradual changes.

5 Must Know Facts For Your Next Test

1. Analog meters typically have lower input impedance compared to digital meters, which can affect the circuit being measured.
2. The accuracy of an analog meter is often expressed as a percentage of the full-scale reading.
3. Analog meters are less susceptible to electromagnetic interference than digital meters.
4. They usually require manual ranging, meaning the user must select the appropriate range for measurement.
5. The internal mechanism of an analog meter often involves a moving coil galvanometer.

Review Questions

• What type of internal mechanism is most commonly used in analog meters?
• How does the input impedance of an analog meter compare to that of a digital meter?
• What is one advantage of using an analog meter over a digital meter?

Related terms

Digital Multimeter: A device used to measure electrical quantities such as voltage, current, and resistance with a numerical display.

Galvanometer:

An instrument for detecting and measuring small electric currents by deflection of a moving coil.

Ohmmeter:

A device used specifically to measure electrical resistance.