虽然电子产品的生产检验通常只使用一套简单的专用测量法,必须的重复测量工作需要许多手控开关把测量电路接到每个元件的相同测量点上。本文介绍了一种小的穿孔卡片标记阅读器。用它能大大简化测试工作。每一张卡片为某种专门的测量单独编码,只要用一组卡片就能自动调节所有的开关。 Although the production test of electronic products usually only uses a simple set of special measurement methods, the necessary repeated measurement work requires many manual switches to connect the measurement circuit to the same measurement point of each component. This article describes a small punch card tag reader. Use it to greatly simplify the test work. Each card is individually coded for a specific measurement, and all the switches are automatically adjusted by just one set of cards.