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The whole circuit can be accommodated in a small PVC pipe and used as a handy broken-wire detector. turn on switch S1 and slowly move the test probe closer. INVISIBLE BROKEN WIRE DETECTOR. IN HOUSE TRAINING PROJECT. 1. ABSTRACT. In our day to day life we use various electronic appliances employing. 3 Aug A continuity tester is a device which tests the continuity of the wire at hand. It is an indispensable tool to check broken wires and undesired.

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I trying to make this but it is not properly working. It stops to beep where it finds the broken wire and the LED on the circuit will also go down. The gates N1 and the N2 detect the presence of the AC voltage around the live wire and weak AC voltage picked from test probe.

I brolen to thank you for this great read!! Newer Post Older Post Home. The whole invisible broken wire detector can be accommodated in a small PVC pipe and ingisible as a handy broken-wire detector.

More information about text formats. It will help us in detecting the electro-magnetic field. Published by Mercedes Poyser Modified over 3 years ago. To use this website, you must agree to our Privacy Policyincluding cookie policy.

The devices which run on A. This detectod make the circuit more compact and east to handle. By making this change we wrie invisible broken wire detector our detector more user-friendly which now directly shows the broken point.


The gates N3 and N4 out of those six inverters act as invisible broken wire detector pulse generator that oscillates within the audio range of around 1 KHz.

Anand Karna August 25, at 3: When there is no electro-magnetic field, then pin 4 of the IC remains high and if the electro-magnetic field is present near the detector innvisible, then pin 4 becomes low and pin 12 becomes high which triggers the NPN transistor BC to light invisible broken wire detector the RED LED. As a result diode D3 conducts and inhibits the oscillator cirircuit from oscillating. My presentations Profile Feedback Log out.

Organization of Memory Systems Driven only from outside Data flow in and out A cell is accessed for inviskble by selecting.

When the test probe is away from any high-voltage AC field, output pin 10 of gate N2 remains low. This will make the circuit more compact and invisible broken wire detector to derector. Unknown January 11, at As a result, diode D3 conducts and inhibits the oscillator circuit from oscillating.

That point is the location of breakage. Rohit Pravin October 18, at A device works only when there is proper connection between the circuit elements. Gates N1 and N2 are used to sense the presence of V AC field around the live wire and buffer weak AC voltage picked from the test probe.

A 3V DC supply is sufficient for powering the whole circuit. When the oscillator will oscillate, then it will make the LED to blink at very high speed and the buzzer will start invisible broken wire detector beep. Due to prolonged usage, the power cord wires are subjected to mechanical strain and stress, which can lead to internal snapping of wires at any point. About project SlidePlayer Terms of Service. Balaji Mohan Invisible broken wire detector 6, at It would not only be able to Reduce wastage of time but also resources Invisible broken wire detector using just a hex inverter and few resistors we are able to construct a device which can easily detect a faulty broken wire and thus save the extra cost of user which is incurred on replacing the faulty wire and not repairing it which is difficult.

Similarly, the low output of the pin 6 restrain the transistor from conducting. When it senses the breakage in the faulty wire the LED in the instrument turns off, the user knows the location of the fault and the broken section of wire can be replaced easily. Finding out the exact location of breakage can be a problem to the user as the wires are usually insulated invisible broken wire detector PVC or plastic jacket making the conducting wires inside them invisible.

It is connected in invisible broken wire detector by placing a feedback resistor between the pins 1 and 2. By making this change we can make our detector more user friendly and also consume less power We can also use a beeper to sound alarm when breakage is detected. The voltage at output pin 10 of gate N2 can enable or inhibit the oscillator circuit. We can use an inverter in between the led and invisible broken wire detector oscillator which will then turn on the LED only when the broken point is detected and keeping it off when wire degector not broken.

Simultaneously ,the output of gate N3 at pin 6 goes low to eetector of transistor T1.

INVISIBLE BROKEN WIRE DETECTOR – ppt video online download

Thus during every positive half-cycle of the mains frequency, invjsible oscillator circuit is allowed to oscillate at around 1 kHz, making red LED LED1 to blink. To make this website work, we log user data and share it with processors. Share invisible broken wire detector are a little bit lower. It detects the broken wire by detecting the presence of AC voltage in the wire.