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  #1  
Old 01-04-2016, 03:56 PM
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Default Arduino based pulse induction metal detector

My project foxyPI v2 - pulse induction Arduino based metal detector
Video: https://youtu.be/ikJbqUCbyvw
Schematic:

Description (in russian): http://acdc.foxylab.com/node/47
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  #2  
Old 01-04-2016, 04:12 PM
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Heh?

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Old 01-04-2016, 04:56 PM
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Is this a school project?

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Old 01-06-2016, 09:33 AM
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  #5  
Old 01-07-2016, 02:45 PM
alphagrby9 alphagrby9 is offline
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Default FoxiPI v2

Hi Alexander

on your site we are the only source for FoxiPI v1.
for FoxiPI v2?
congratulations for the effort

bay alphagrby9 (renato)
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  #6  
Old 01-08-2016, 08:39 AM
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Originally Posted by alphagrby9 View post
Hi Alexander

on your site we are the only source for FoxiPI v1.
for FoxiPI v2?
congratulations for the effort

bay alphagrby9 (renato)
Thanks.
Project FoxyPIv2 is currently under construction.
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  #7  
Old 01-09-2016, 06:59 AM
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Test targets:


Search depth:
1 - 34 cm
2 - 26 cm
3 - 19 cm
4 - 12 cm
5 - 9 cm
6 - 2 cm
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Old 01-10-2016, 06:39 PM
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Originally Posted by FoxyLab View post
Test targets:


Search depth:
1 - 34 cm
2 - 26 cm
3 - 19 cm
4 - 12 cm
5 - 9 cm
6 - 2 cm
I'm not sure I understand this thread, Is this a machine going into production or a school project? I don't mean to sound discouraging but taget #6 looks to be the size of a quarter at less than 1in. and target #1 (manhole cover?) at 13in. Can you clarify what type of project this is?

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  #9  
Old 01-11-2016, 01:36 AM
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Originally Posted by Ron 71 View post
I'm not sure I understand this thread, Is this a machine going into production or a school project? I don't mean to sound discouraging but taget #6 looks to be the size of a quarter at less than 1in. and target #1 (manhole cover?) at 13in. Can you clarify what type of project this is?
No, this is DIY project in topic "Make It Yourself". What is wrong?
Target #1 - HDD plate.
Target #6 - smallest USSR's coin (1 kopeika).
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Old 01-11-2016, 06:18 AM
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Originally Posted by FoxyLab View post
What is wrong?
What's wrong is we all tryin see WTH you doin is all. Clueless as to what you implyin w ur initial postin

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  #11  
Old 01-11-2016, 08:17 PM
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Originally Posted by FoxyLab View post
No, this is DIY project in topic "Make It Yourself". What is wrong?
Target #1 - HDD plate.
Target #6 - smallest USSR's coin (1 kopeika).
Nothing wrong, just curious is all. There wasn't very much info in your op. Didn't mean any disrespect in questioning depths, I have a P.I machine that gets considerably more depth and thought you were designing a production unit. Regardless your understanding of this technology is impressive and good luck with your project.

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  #12  
Old 01-13-2016, 02:23 PM
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Looks promising

I built quite a few PI detectors myself, based on Microchip PIC controllers.

One of the reasons of your low sensitivity might be the 10x flyback pulse amplifier.
Normally, this is 1M/1K = 1000x if you have a single amplifier.

Also, the battery voltage to monitor is the 12V, not the 3V.

But I like the Arduino approach !
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  #13  
Old 01-16-2016, 04:58 PM
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Originally Posted by F117 View post
Looks promising

I built quite a few PI detectors myself, based on Microchip PIC controllers.

One of the reasons of your low sensitivity might be the 10x flyback pulse amplifier.
Normally, this is 1M/1K = 1000x if you have a single amplifier.

Also, the battery voltage to monitor is the 12V, not the 3V.

But I like the Arduino approach !
I use a comparator instead of the ADC, so I deliberately reduced the gain to reduce noise.
Detection of a small coin from a distance of 10 cm is enough for me. Large targets defines of half a meter or more:
this can - 80 cm

Monitoring the battery 3 Volt made because its failure would lead to complete failure of the device. Lowering the battery voltage of 12 volts within reasonable limits will only lead to a loss of sensitivity.
Thanks for your feedback!
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  #14  
Old 01-20-2016, 06:16 AM
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MD building in progress :-)
Current state:
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  #15  
Old 01-25-2016, 12:58 PM
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Current state:
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  #16  
Old 03-27-2016, 01:40 AM
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Field test and search with my Arduino pulse metal detector
26.03.2016

https://youtu.be/Xk4X6O1646M



Description: http://acdc.foxylab.com/node/47
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  #17  
Old 03-27-2016, 08:31 AM
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Great project my friend! I think its cool you chose to build a machine. Way beyond my knowledge level. Good job and keep at it.

Matt

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  #18  
Old 03-30-2016, 08:55 AM
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Originally Posted by Twisted Bones View post
Great project my friend! I think its cool you chose to build a machine. Way beyond my knowledge level. Good job and keep at it.

Matt
Thanks a lot!
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  #19  
Old 04-02-2016, 09:43 AM
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My Arduino pulse metal detector: dynamic (motion) mode in action
https://youtu.be/LoBzFpZ0NYw
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  #20  
Old 04-11-2016, 09:14 AM
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Default Im still waiting

to see some pics of the circuitboard and coil? Whats the voltage on this unit. Whats included? volume, pulse delay? threshold? Sensitivity?


fill me in . I like to tinker and build. I may be interested?
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