City electric leakage detector ----- Leakage Detector

This is a simple scanning circuit that you can use to determine the metal objects. It is only necessary to connect a wire as a sensor when using the clock input of IC1. It can detect that the metal object has no charge. The sensor wire can be used to intercept 10 cm long with a Copper or metal line of SWG specifications. Get the sensor when used. Close to the place where you suspect it. Since the input impedance of the CMOS integrated circuit is very high, enough voltage formation clock signal can be induced in the sensor. The output foot (11) of the CD4017 counter can drive the light-emitting diode LED2 to emit light, indicating that the metal object charges. Another LED1 is used to make a power indicator. This circuit can be used to determine whether there is a leakage failure in a common electrical appliance such as a fan, a stirrer, a refrigerator. The power supply can be used with a 9V battery. For safety, the sensor preferably uses a copper wire with an insulating skin.

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