线缆测试仪开关矩阵检测方法研究

Research on cable tester switch matrix detection method

为满足对线缆测试仪的开关矩阵及所有测试接点进行检查的要求,研究采用印刷电路板模拟线缆及线束对线缆测试仪开关矩阵及所有测试接点进行检测的方法。针对线缆测试仪的测试功能特点,分别研究短路、导通、绝缘及电容测试板原理、元器件选型和制作方法,通过大量试验证明这些方法的检测速度快速有效,可以满足开关矩阵检查的要求。

In order to satisfy the inspection requirements on the switch matrixes and all the testpoints of cable testers, printed circuit boards were adopted to simulate cables and wires to detectthe cable tester switch matrixes and all the test points. The short circuit, conduction, insulationand capacitance test board principle, component selection and production method were studiedrespectively according to the testing functions and features of the cable tester. A large number oftests have demonstrated that these methods are rapid and efficient in defection, and can meet theinspection requirements of switch matrixes.