Which type of frequency meter is considered the simplest?

The vibrating-reed frequency meter is regarded as the simplest type of frequency meter due to its basic operating principles and physical design. It operates by utilizing mechanical reeds that resonate at specific frequencies. When an alternating current is applied, the frequency of the input signal causes the reeds to vibrate at their natural resonance frequencies. This mechanical resonance provides a direct and straightforward method of frequency measurement without the need for complex electronics or extensive calibration.

Unlike digital frequency meters, which rely on electronic components to process and display frequency readings, the vibrating-reed meter's simplicity is rooted in its analog nature and mechanical operation. As a result, it is often easier to use, particularly in straightforward applications where high accuracy is not paramount.

While other types of frequency meters may offer more advanced features or precision, the vibrating-reed meter remains a fundamental instrument in frequency measurement applications, making it a suitable choice when simplicity is desired.