Quick Answer:The Analog Frequency Meter is a vibrating-reed meter: a row of tuned, white-tipped reeds behind a glass window, of which the reed matching the AC supply frequency vibrates most strongly.
Last updated: 18 October 2026
Key Features
Vibrating-reed type, working by mechanical resonance.
Multi-reed display with high-contrast white tips.
Reeds are excited electromagnetically by the AC supply.
Housing fitted with a glass window.
Technical Specifications
Specification
Value
Type
Vibrating reed
Display
Multi-reed array, white-tipped
Principle
Mechanical resonance, electromagnetic excitation
Window
Glass
How It Is Used
The meter is connected to an AC supply or generator output. Each reed is tuned to a different frequency, and the one in resonance with the supply vibrates with the largest amplitude, so the frequency is read directly against that reed. It is used to check mains stability and generator output in electrical practicals.
Frequently Asked Questions
How is the frequency read on the Analog Frequency Meter?
The reed tuned to the supply frequency resonates and vibrates most strongly, and the frequency is read against that reed.
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