full wave square-law detector

例句：

1. 1. The full-wave square-lawdetector is used to detect the presence ofa signal in a wide frequency range.
   全波平方定律探测器用于在宽频率范围内检测信号的存在。
2. 2. In this experiment,we used a full-wave square-law detector to measure the voltage across theresistor.
   在这个实验中，我们使用全波平方定律探测器来测量电阻两端的电压。
3. 3. The full-wave square-law detector was used to detect thepresence of a fault in the circuit.
   全波平方定律探测器被用来检测电路中的故障。