A Panel Power Meter is an instrument for measuring the power of electrical signals. Power is an important parameter to characterize the characteristics of electrical signals. In the DC and low-frequency range, it is convenient to measure the effective value of the voltage V on the load, the effective value I of the current flowing through the load, and the phase angle between the voltage and the current, and use the following formula to calculate the power value.

　　Panel Power Meter consists of two parts: a power sensor and a power indicator. The power sensor is also called a power meter probe, which converts high-frequency electrical signals into electrical signals that can be directly detected. Power indicators include signal amplification, conversion, and display. The display directly shows the power value. The power sensor and the power indicator are connected by cables. 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.

　　Application of Panel Power Meter:

　　1. It is used to measure the absolute optical power or the relative loss of optical power passing through a section of optical fiber. Measuring optical power is fundamental in fiber optic systems, much like a multimeter in electronics. In optical fiber measurement, optical power meters are commonly used meters for heavy loads.

　　2. By measuring the absolute power of the transmitter or the optical network, an optical power meter can evaluate the performance of the optical device. Using an optical power meter in combination with a stable light source can measure connection loss, verify continuity, and help evaluate fiber link transmission quality

　　3. Equipped with the dB function of direct insertion loss measurement.