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Power meter An instrument for measuring electrical power. Generally refers to a power meter that measures power in DC and low-frequency technology, and can also be called a wattmeter.
The power meter is composed of a power sensor and a power indicator. The power sensor is also called the power meter probe, which converts the high-frequency electric signal through energy into an electric signal that can be directly detected. The power indicator includes signal amplification, conversion and display. The display directly displays the power value. Use a cable to connect the power sensor and the power indicator. In order to meet the needs of different frequencies, different power levels and different transmission line structures, a power meter should be equipped with several power meter probes with different functions.