What does a frequency meter measure?

A frequency meter is specifically designed to measure the frequency of electrical signals in hertz (Hz). This important device allows users to determine how often an alternating current (AC) signal cycles per second, which is critical in many electrical and electronic applications. Proper frequency measurement is essential for ensuring that devices operate at their specified requirements, particularly in systems involving motors, generators, communication devices, and audio applications where frequency stability is crucial.

The ability to monitor frequency can help prevent issues related to resonance, harmonics, or improper functioning of electrical equipment. It directly impacts performance and efficiency, thereby highlighting the significance of frequency meters in electrical engineering and related fields.