They are the cavity radiometer and the water flow power meter for laser power measurement, the cone calorimeter and the volume-absorbing calorimeter for laser energy measurement.
有测量激光功率的空腔型辐射计和流水式功率计、测量激光能量的锥型能量计和体吸收型能量计。
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The main features of the meter are as follows: The cylinder TE011 cavity with high Q is used as the sensor of the thickness. It transforms the thickness into resonant frequency shift.