Elektor 5/07 Magnetometer

[rael]

The ELF receiver use 1-23 Hz frequency range /Elektor 5/2007/. More about this project found at follow link:
http://www.vlf.it/kurt_2/ELF-Signals.htm

Мany VLF, ELF receivers are designed for receiving signals from power terrestrial transmitter, emitting VLF-ELF waves.
http://www.vlf.it/itulist/itulist.htm
http://www.vlf.it/

[okantex]

can not it be changed to 10khz -150khz range.may be 10-40khz, 40-80khz,80-120khz,120-150khz.selectable frequency ranges.
if we can do it.it will work like emfad.

[Unregistered]

I mean how it can detect any physical object at normal range without any trasmitter-reciever techniques...

Maybe misunderstand you, BUT, have you tried opening your eyes? you should then be able to detect/see physical object at normal range, and maybe you no trip over and face first in mud.

[Crowbar]

At EMFAD datasheet is mentioned that is detects conductive materials and such anomalies using stand alone VLF radio stations- so it's interesting what is SNR and sensitivity of a coil systems in it if whole system serachs at max depth of 12m and has 10bit ADC with 5V dynamic range.

[okantex]

there adc is used to get digital output to pc to get visual results.nothing else.may be helpfull to differ metal and cavity.

[Unregistered]

Simple Magnetometer project found at follow link:
http://www.elektor-electronics.co.uk...rt=53325&PN=On
Using 220V/12V mains transformer for sensor.

good day!!!

Sir,I think your circuit is easy to build, please can you post a much greater resolution of your schematic diagram or please sent me your schematic diagram at [email protected]

[ikumi5]

Simple Magnetometer project found at follow link:
http://www.elektor-electronics.co.uk...rt=53325&PN=On
Using 220V/12V mains transformer for sensor.

Hi Rael,

PCB that i made from your schematic diagram.

many thanks!!!

regards

ikumi5

[okantex]

Hi İKUMİ5
did you completed this magnetometer.

is it suitaable for metal and cavity search.

did you try it with polar anttenas

best regards
okantex

[teknoloji]

Andy Flind's project on EPE (January 1995) is based also on transformer. Signal shows via 10 leds and audio variation. Uses common chips. You can modificate it for various purposes.

Hello
Pictures can not be read. install a large clean image.
If you install it, or epe magazine 1995 issue.

Thank you.