利用示波器维修陆用压电检波器电路板二三例

Maintenance Cases for Land Piezoelectric Detector Circuit Board by Using Oscilloscope

陆用压电检波器在野外施工过程中会出现不同程度的损坏,利用示波器、信号发生器和稳压源组成测试系统,给电路板输入标准信号,在关键点测试输出信号,并用示波器显示波形。根据波形有无、大小和是否失真可以判断电路板的好坏,以此查找电路板上的故障点并进一步维修。

Land piezoelectric detector damage occurred at different degree during field operation.By using oscilloscope detection system composed of signal generator,power source and oscilloscope,standard signals are input to the circuit board,output signals are tested on key points,and waveforms are displayed on the oscilloscope.According to the size and distortion of the output waveforms at key detect points,the circuit board faults can be judged.