What Is a Frequency Meter?

A frequency meter, also called a frequency counter, is an electronic measuring instrument that measures the frequency of the signal under test. The frequency meter is mainly composed of four parts: time base (T) circuit, input circuit, count display circuit and control circuit.

There are many methods for measuring frequency. They are divided into passive frequency measurement method,

In traditional

At present, the frequency meter manufacturers on the market can be divided into three categories: Chinese manufacturers, Taiwan manufacturers, and European and American manufacturers. Among them, European and American frequency meter manufacturers occupy the largest market share.

European and American frequency meter manufacturers are: Pendulum Instruments and Agilent Technologies.

Pendulum Instruments is a Swedish company headquartered in Stockholm, Sweden. Pendulum company originates from the time and frequency department of Philips, and has more than 40 years of R & D and production experience in the field of time and frequency measurement. Pendulum Instruments' conventional frequency counter models include: CNT-91, CNT-90, CNT-81, and CNT-85. At the same time, Pendulum Instruments also introduced clock-based frequency meters CNT-91R, CNT-85R. And microwave frequency meter CNT-90XL (frequency measurement range up to 60G).

Agilent Technologies is an American company headquartered in California, USA. Agilent Technologies was founded in 1939 and has more than 70 years of R & D and production experience in the field of electronic measurement. Agilent's conventional frequency meter signals are: 53181A, 53131A, 53132A. At the same time, Agilent Technologies also introduced microwave frequency meters: 53150A, 53151A, 53152A (frequency measurement range up to 46G). ^[2]