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介绍一种大动态范围激光回波功率线性测量系统。此装置采用单片机控制光学变密度盘 ,浮点放大器技术。其线性动态范围 1 0 4分贝 ,带宽 1 0兆赫兹 ,最大增益 2 5 6 0倍 ,最小增益 1 0倍。时实输出激光回波功率。同时给出回波峰值功率计算公式及实际测量结果
A large dynamic range laser echo power linear measurement system is introduced. This device uses SCM control optical variable density disk, floating-point amplifier technology. It has a linear dynamic range of 104 dB, a bandwidth of 10 MHz, a maximum gain of 2560 and a minimum gain of 10 times. Laser output power when real output. At the same time, the echo peak power calculation formula and the actual measurement results are given