电路板的测试是电子仪器、设备生产及使用维护中必不可少的手段。传统的测试仪器是三用表、示波器、频率计、电平表、逻辑笔、频谱仪及逻辑分析仪等。使用这些仪器仪表对电路板进行元器件或电路的检测,效率低、准确度差,而且检测成效与检测人员的素质、经验等直接相关。一般来说,维护测试人员必须具备相当的电子电路及相关的专业理论知识,了解被测电路板的工作原理,否则 Circuit board testing is an indispensable means of electronic equipment, equipment production and use and maintenance. Traditional test equipment is a three-meter, oscilloscope, frequency meter, meter, logic pen, spectrum analyzer and logic analyzer. The use of these instrumentation on the circuit board components or circuit testing, low efficiency, accuracy is poor, and the test results and the quality of the inspectors, experience is directly related. In general, the maintenance tester must have a considerable amount of electronic circuits and related professional theoretical knowledge of the circuit under test to understand the working principle, or