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多次复盖中,炮点和排列一起向前移动,而且移动的间隔是相同的。过去的电缆不能适应这种方法。现在我们使用一种既能用于普通连续观测系统又能用于多次复盖的电缆,工作比较方便。这种新电缆的特点是每段电缆的两端插头是“错动”连接的。其原理简述如下。为了叙述简单,我们假设只有四道检波器,对应有四段电缆。每段电缆完全一致(见图1)。电缆两端插头是“错动”连接的,即公插头的第1芯接母插头的第2芯(这里每芯实际是正、负两股线),公插头第2芯接母插头第3芯,公插头第3芯接母插头的第4芯,而公插头的第4芯接母插头的第1芯。每道检波器接到一段电缆上,而且都是接在公插头的第4芯,即母插头的第1芯上。
In multiple covers, the shots move forward along with the alignment, and the spacing is the same. Past cables can not accommodate this method. Now we use a cable that can be used both for normal continuous viewing systems and for multiple overlays, and is easier to work with. The new cable is characterized by the “wrong” connection of the two ends of each cable. The principle is summarized as follows. For the sake of simplicity, let us assume that there are only four detectors, corresponding to four sections of cable. Each cable is exactly the same (see Figure 1). The two ends of the cable are “staggered”, ie, the first pin of the male plug is connected to the second pin of the female plug (where each core is actually a positive and negative wire), the male pin is connected to the second pin of the male plug, , The third pin of the male plug is connected to the fourth pin of the female plug, and the fourth pin of the male plug is connected to the first pin of the female plug. Each detector connected to a section of cable, and are connected to the male plug of the fourth core, that is, the first pin on the female plug.