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Offline bernte_one
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« Reply #10 on: November 24, 2014, 03:21:23 am »
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hello Xavier

the senors are mounted on one axis (gradiometer configuration)

i have build a fully analog mag with two identical ferrite core coils

the earth filed induces a nearly same current in the coils, only if the current Change in one of them a Signal is given to two antiparallel connected leds

the tow sensors are fiited on one stiff carbon fibre rod of 80cm distance

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my machines at work http://mueller-meteoriten.de

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I CAN MAKE PCBs FOR YOUR DIY PROJECT  offer only within EU
Offline xavier
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« Reply #11 on: November 26, 2014, 12:48:33 am »
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Hi Bernte

I know very little about these magnetometers and for that reason I'm planing to build one in the near future but first I need to complete all my other projects.

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Xavier

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So many questions so little time
Offline ehsanajal
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« Reply #12 on: January 29, 2015, 03:56:02 am »
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is this project good for treasure hunting?detect gold?

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Offline RAMPITopic starter
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« Reply #13 on: January 29, 2015, 08:01:32 pm »
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Quote:Posted by ehsanajal
is this project good for treasure hunting?detect gold?


This is good for treasure hunting, can't detect gold only for average metal, cave and underground tunnel which is also looks interesting for me.

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« Last Edit: January 29, 2015, 08:09:29 pm by Saromines » 		Logged
Offline ehsanajal
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« Reply #14 on: January 30, 2015, 06:35:46 am »
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Quote:Posted by Saromines
This is good for treasure hunting, can't detect gold only for average metal, cave and underground tunnel which is also looks interesting for me.

thanks
what depth of that can detect it ?
can detect silver or Non-ferrous metal  .can you tell me more help.regards

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Offline RAMPITopic starter
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« Reply #15 on: January 31, 2015, 09:50:07 am »
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Quote:Posted by ehsanajal
thanks
what depth of that can detect it ?
can detect silver or Non-ferrous metal  .can you tell me more help.regards


This one can give you more info's...

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http://www.electronicsandbooks.com/eab1/manual/Magazine/E/Everyday%20Practical%20Electronics/200408.pdf


A lot more information..

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http://www.geotech1.com/forums/showthread.php?13938-Epe-pic-magnetometer


Some other download page..

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http://www.md4u.ru/viewtopic.php?f=28&t=8179


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« Last Edit: January 31, 2015, 10:32:58 am by Saromines » 		Logged
Offline alikhan123
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« Reply #16 on: September 25, 2015, 10:45:42 am »
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Hi
Ihave built this magnetometer some times ago.
How can I analyse the data in Geosurveyor? Do you have any reference for the first topic's pictures?
Of course I can transfer the data from my magnetometer to the pc via the software proposed by John Becker.
But the analysis with additional softwares like geosurvayor seems more useful.

All the best


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Offline salvor6
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« Reply #17 on: November 15, 2016, 06:03:58 pm »
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I built this magnetometer and it was simple to build and worked very well. The sensors need to be about 3 feet apart. It would pick up my barbeque grill from 20 feet away.

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Offline alikhan123
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« Reply #18 on: November 16, 2016, 06:32:13 am »
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Hi
do you use another software beside one which is pointed out be the article?
Is you sensor sensitive with respect to rotation?
If possible please send a few pics of your magnetometer here.

all the best

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