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汽车电器在安装之前,对配线、印刷电路板、晶体管、电解电容器等待用元器件的通断以及单格蓄电池的正负极性,事先都要进行测试,然后再组装。人们一般常用万用表作为检测工具,但这既费时间又比较麻烦。为此,我们设计了一种多功能声光指示通断器(见下图),该通断器小巧别致,使用方便,测试效果不比万用表差,甚至还具有万用表难以胜任的功能。
Before the installation of automotive electrical wiring, printed circuit boards, transistors, electrolytic capacitors waiting for the components of the on-off and single-cell battery polarity, prior to be tested, and then assembled. People generally use multimeter as a testing tool, but it takes time and more trouble. To this end, we have designed a multi-function acousto-optic indicator (see below), which is compact and exquisite, easy to use, the test results are not worse than the multimeter, and even have the multimeter is difficult to function.