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在电路检修和电子制作中,经常要用万用表检测一段线路是否已开路或焊接成功。检测时必须一边用手测一边用眼睛观察万用表是否偏转,而万用表表笔往往很容易滑动移位,若此时视线集中在表盘上,就会造成误测。加上一般万用表体积过大且笨重,使用起来很不方便。本人利用发光二极管设计了一个简易检测器,可解决上述不便。检测器实物如图,当探针1和2短接时,由于二极管的单向导电性发管二极管立刻导通发光。使用时只需将两探针接触待测线路两端,若二极管发光,则待测线路为通路,否则线路有断点,可分
In the circuit repair and electronic production, often use a multimeter to detect whether a circuit has been open circuit or welding success. Detection must be hand while measuring while using the eye to observe the multimeter is deflected, while the multimeter pen is often easy to slide shift, if the time focus on the dial, it will cause misjudgment. With the general multimeter bulky and bulky, very inconvenient to use. I use light-emitting diodes designed a simple detector, to solve the inconvenience. Detector physical Figure, when the probe 1 and 2 shorted, due to the diode unidirectional conductive tube diode immediately turn on the light. When using the probe, only the two probes are required to be in contact with the two ends of the line under test. If the diode is illuminated, the line under test is the path, otherwise, the line has a breakpoint and can be divided