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Offline godsmackTopic starter
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« on: July 08, 2010, 02:25:28 am »
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hello every body
i want build a metal detector for searching in 3m depth . i search in every site but i couldn't find anything .for example i saw miner-4 or other project but all of them have a problem in their design in manufacturer don't give a correct plan to us .
please help me and offer me a good metal detector schematic for build .
thanks a lot Cry

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Offline Paul A
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« Reply #1 on: July 08, 2010, 03:26:46 am »
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Hi,
It depends on the size of what you are looking for at 3 meters.
There is no detector in any shape or form that will go to that kind of depth on coins.
If it's something substantial such as the size of an oildrum you might just do it with a decent P.I. design.
The dbp2010 (schematics and everything are on here) would likely be a good choice using a LARGE coil.
For goodness sake keep away from anything such as "LRL's" that claim to be able to detect things at hundreds of meters.......... they DONT work.


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Offline godsmackTopic starter
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« Reply #2 on: July 08, 2010, 05:30:16 am »
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hi and thanks for your answer
i want find things with 30*30 cm in 2.5 to 3m depth .
friends can you offer a good metal detector for build ?
can i find a 30*30 metal with dbp 2010 ?
thanks guys

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« Reply #3 on: July 08, 2010, 06:56:32 am »
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your deep PI detector design will be greatly limited by the coil size.are you capable to wind and build a large 1metre+ size coil.the soil type is important also for depth.is soil conditions high mineralised.I can find larger metal object like Boat anchor in deep beach sand to 2metres with my built PI an very large coil.but same setup on inland bush the depth is almost half.
the larger the coil, the less sensitive on smaller metal targets.
I have not seen in my time any PI detector design detect to 3metres.home built or commercial made.but I may be wrong and there does exist such a unit,but must have a very large search coil,maybe even towable?
Good Luck!

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Offline godsmackTopic starter
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« Reply #4 on: July 08, 2010, 07:09:03 am »
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i haven't any problem about coil . if i find a top schematic pi detector plan i can build it's coil .


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« Reply #5 on: July 08, 2010, 07:18:01 am »
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hi hamedtaheri

             if you take a test as standard to all deeper detector

             as dbp2010 look to the text you see 30*30 at any deep with any

             coil , it is esay.
 
             -----that test in air.

             best time

             j.

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« Reply #6 on: July 08, 2010, 07:19:31 am »
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hi
i agree with Paul A
you can try delta pulse
what ever it is
i hope you can detect it .


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« Reply #7 on: July 09, 2010, 01:57:34 pm »
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do you think with delta puls i can get result ?
my friend built pulse detector but they tell me i should change some of this design
dbp2010 schematic is not clear
anybody have a clear schematic ?
i'm wait
please answer

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Offline Eugene52
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« Reply #8 on: July 09, 2010, 07:37:26 pm »
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Quote:Posted by godsmack
do you think with delta puls i can get result ?
my friend built pulse detector but they tell me i should change some of this design
dbp2010 schematic is not clear
anybody have a clear schematic ?
i'm wait
please answer


Hello . We have a clear full DBP2010 schematic buried here on this Forum somewhere ? I will search soon  !!

HH............Eugene

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Offline godsmackTopic starter
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« Reply #9 on: July 10, 2010, 04:20:10 am »
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I'm very confused . i can't understand who say right ? Shocked
for fifth time i say : my specialist friend i want find a 30*30 metal piece in 2 to 2.5 m depth
what metal detector can do that ?
i want build it .
whatever i search deeper in forum i find less . Cry
one person say build dbp2010 another person say no it's not good
one person say build delta pulse
i can't decide .
please help me . please guide me


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« Last Edit: July 10, 2010, 04:27:25 am by godsmack » 		Logged
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