high frequency voltmeter

例句：

1. 1.This high frequency voltmeter is used to measure the voltage of high-frequency signals.
   这个高频电压表用于测量高频信号的电压。
2. 2.The engineer used a high frequency voltmeter to check the accuracy of the circuit.
   工程师使用高频电压表来检查电路的准确性。
3. 3. The high frequency voltmeter was used to detect any potential faults in the electrical system.
   高频电压表被用来检测电气系统中的任何潜在故障。