Home Made - Simple Metal Detector "Beat Frequency Oscillator"

[xMusiicloveex]

Hi, I have a question, do you know if it's possible to connect this metal detector to a PIC? or how could it be possible to put it on a system that will skip obstacles but that has to find a metal piece, or at least that when it find it an electromagnet be activated? :/ Thanks

[LEDchaser]

@xMusiicloveex

You need to rectify the output signal in order to obtain a positive indication of the metal object’s proximity to the search coil. The inductance of the search loop has Faraday shielding to reduce capacitive-coupling effects by simply wrapping the completed loop with the foil tape. Make sure the tape has a gap at one point around the loop, or a shorted-turn transformer results and you should mechanically secure the search coil to a nonmetallic form to prevent microphonics.

[ScopedOUT2]

I'm coming "Free Willy" just hang on.

[micmoable]

can it detect down to six inches on a penny or dime?

[hugovelocity]

This is like baby cries =(

[willallerbr]

Thank you very much for share knowledge. I'll try make this device.

[smartboy140597]

mi-am dat seama ca esti roman dupa moneda:)) 1Ban :))

[elothin]

that's cool but what is the depth detection

[sttefann77]

tipule..esti roman...:D Bv pt detector;)

[Vict458]

at the end it was screaming so loud because it saw gold

[TypesEvilAspieEyes]

Did you put it in a exoskeleton??

[LEDchaser]

@TypesEvilAspieEyes

No, not for the moment, that was just a simple test. These fun and simple experiments can teach you the basic principle of metal detectors...

[TypesEvilAspieEyes]

Headphone users . Turn the volume up to max !! Hehehe

[MrPeeepe]

How cool :)

[LEDchaser]

Un astfel de detector nu este greu de confectionat, dar montajul respectiv trebuie plasat langa un radio clasic cu receptie in banda de unde medii, in asa fel incat modificarile de frecventa ale oscilatorului (in prezenta obiectelor metalice) sa fie sesizate de catre receptorul radio.

In plus, montajul nu este foarte stabil si trebuie refacut permanent acordul receptorului radio.

[curcangeorge97]

esti din romania??si aia e o moneda de 1 ban??

[Ygr3ku]

@curcangeorge97 mai are una si de 50 bani ... fain asa frate ... zi-ne si noua cum sa-l facem mai exact ca de cand caut pe net ...

[kamranmkhattak]

bro can you provide us with the circuit blue print , layout and parts name? its a good thing and i also want to try it..

[Ibringthetruth1]

very nice. not exactly sensitive.