>>>A Circuit modificaton idea... - Electronic Circuits Projects Diagrams Free

Someone Electro · 31st October 2003, 06:40 AM

This is my metal detector.But a had a idea to modefy it!

My idea:
To make a oscilator that oscilates on the same freqecy as
the metal detector whit no metal.The signal from the oscilator wod thurm off the metal detectors signal.

Wod this work?

PS:
It creates a 1000 Hz signal AM modulated on 5000 Hz(sine wave)
I sean this a my computer (those sound card oscilosopes).

Sebi · 31st October 2003, 09:38 PM

As i read, You discovered the BFO metal detector...

Someone Electro · 2nd November 2003, 05:50 AM

BFO metal detectors transmit a radio signal!(which this dosent)

The uper circuit is a matal datactor that datacts changes of inductance in the transformer(only the uper E shapet plates)

Wean it detects a metal the tone lowers.I want it to detect wean the tone lowers!

PS:
I think its the beast solution to conectit to a freqency alanizer!
(I have a program for this(those sound card input ones))

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31st October 2003, 06:40 AM	#1
Someone Electro	>>>A Circuit modificaton idea... This is my metal detector.But a had a idea to modefy it! My idea: To make a oscilator that oscilates on the same freqecy as the metal detector whit no metal.The signal from the oscilator wod thurm off the metal detectors signal. Wod this work? PS: It creates a 1000 Hz signal AM modulated on 5000 Hz(sine wave) I sean this a my computer (those sound card oscilosopes). Attached Thumbnails

31st October 2003, 09:38 PM	#2
Sebi	As i read, You discovered the BFO metal detector...

2nd November 2003, 05:50 AM	#3
Someone Electro	BFO metal detectors transmit a radio signal!(which this dosent) The uper circuit is a matal datactor that datacts changes of inductance in the transformer(only the uper E shapet plates) Wean it detects a metal the tone lowers.I want it to detect wean the tone lowers! PS: I think its the beast solution to conectit to a freqency alanizer! (I have a program for this(those sound card input ones))