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15*15 sheet of copper in 2m depth !! possible??

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  • Funfinder
    replied
    dear fun finder the box and the loops should be sheild . and you can adjust the hight of metal detector easily the detector loop can be adjuted to be 30cm above the ground and the other loop must be adjusted this metal detector can find a car in 12m easilly ( in the ground )
    Hi payman20, if you wanna learn something here please listen and don't spread wrong info!

    - If the box is shielded its even more metallic!

    - do you think 30cm above ground will be much better? The coil(s) have to be 5-10cm above ground!

    - 12 meter!!!! for a car !!!!??? With such a little metal-infestest 50cm mini-coils-construction?! Are you kidding? Hahaha !!!
    Who told you such crap? If you haven't tested it by yourself and with buried stuff don't believe and tell it!
    In such a case you would need a 5 times !!!! stronger and highly stable EM-field and the coils have to be at least 2m away
    from each other!

    Whats good about such detectors is that those are mostly nonmotion induction balance ones that even can detect cavity
    if they have not been crippled like the new Whites 808. But they should have been concepted much more
    "cover a huge area in a short time"-friendly and not as:
    "Walk with some coil-construction like an umbrella in your hand over the pampa!".

    Have fun with your experiments!





    @ kt 315 - metal screws directly close to the coil...
    At least those small coils can be held much closer to the ground - this is really good.
    But vertical with horizontal still doesn't match! The 3 dimensional field of EM-waves has to be at the correct orientation.
    Even the LNB for a satellite must to be adjusted from some degrees to over 30° if its located not directly south.





    @ whoever, everyone, all or generally spoken:
    Back to the main question: a 15cm x 15cm square or a metal plate with 15cm diameter of course is detectable @ 2m (6 ft)
    but only in air so far! Adjust your P.I. with 75cm coil to high critical and listen to the slightly faster geting knocking-pulses...
    Just this doesn't work with buried stuff if it isn't buried below 2m of wool, wadding, hay, nonmineralic glass or dry sawdust.

    Realistically seen you will find metal in such size only at ca. 130cm buried if you walk at a dry day
    very slowly over not very strong mineralized soil with a detector that has at least some 45cm coil!

    And if you hold your "2 box" (I wonder where it has any boxes at all...) 50cm over the ground you will never find a
    15cm thingy below 50cm because it makes a big difference that there is not much air inbetween coils and floor!

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  • kt315
    replied
    Originally posted by Funfinder View Post
    A horizontally positioned coil combined with a vertically one - this can't work well ...
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  • Orbit
    replied
    Why are actors in sandals ?

    Leave a comment:


  • mohandes
    replied
    Originally posted by Funfinder View Post
    @ payam20

    look at google for: silver plated alu wire


    Seems its for necklaces or whatever, but seen from the electric attributes, it would be perfect for md coils !!!



    @ landman

    Thx for the depth stats but I'm sorry, those won't help you much further.

    The 1st png is pulse induction without useful metal discrimination and the 2nd -
    Golden King vs. DeepHunter is false, because the Nokta values are not practicable!

    Already in 2009 the Jeohunter and the Golden King have had almost the same depth values -
    the Jeohunter was a bit deeper - it is built more stable and with better coil, even better PCB.
    Because the creators of the Jeohunter did concentrate their whole work on metal detection and
    not creating some milk-giving-wool-chicken with all kind of additional gimmicks, bells and whistles.

    Meanwhile the DeepHunter for shure is minimum 5-10% deeper as the Golden King because
    the creators of those detectors are brothers and they have their own special competition running.
    But what counts much more are the great additional - usage and handling - improvements
    of the DeepHunter and that it also works with high sensitive and lighweight motion-coils.

    btw. The following also is an interesting table -

    especially for comparing with the attached one.
    hi
    for coil winding i have question about this link : http://www.amazon.co.uk/Silver-Plate.../dp/B008HFK6QS
    i want make coil for PI detector , is it work for diff sizes like 30cm , 45cm ,and 110cm*110cm ?
    and more data
    regards

    Leave a comment:


  • mohandes
    replied
    Originally posted by payam20 View Post

    dear fun finder the box and the loops should be sheild . and you can adjust the hight of metal detector easily the detector loop can be adjuted to be 30cm above the ground and the other loop must be adjusted this metal detector can find a car in 12m easilly ( in the ground )
    i will work on sasho in 1 month and i will put the info right here
    but how much would you pay for a meltal detector that could find 5*5 in 120cm and 15*15 in 180cm and a car in 10m (OFCOURSE IN GROND MEANS BURIED IN GROUND WITH HIGH STABILITY )???
    hi payam
    my friend can detect 45cm tray by 120*120cm coil in 3.50merter(not my test) in air.do it by DP2.
    so you make 2box and send it for me. it is work if i want make it?
    regards

    Leave a comment:


  • payam20
    replied

    dear fun finder the box and the loops should be sheild . and you can adjust the hight of metal detector easily the detector loop can be adjuted to be 30cm above the ground and the other loop must be adjusted this metal detector can find a car in 12m easilly ( in the ground )
    i will work on sasho in 1 month and i will put the info right here
    but how much would you pay for a meltal detector that could find 5*5 in 120cm and 15*15 in 180cm and a car in 10m (OFCOURSE IN GROND MEANS BURIED IN GROUND WITH HIGH STABILITY )???

    Leave a comment:


  • Funfinder
    replied
    @ payman20

    Such detectors are only for the comfortable ones or to discriminate all stuff smaller than 15cm
    but don't expect too much depth if someone holds the coils already 50cm above the floor!

    You will never ever find a 15x15cm plate at 2m with it, not even in air.
    if its buried you may find it at 50cm maximum with such detectors, but only if you walk directly over it.

    Look at the guy and how stupid he holds it - he will detect the metal of his belt, this detector
    detects its own electronic box in the middle and it seems that even the poles are made of metal.
    Forget it!

    Leave a comment:


  • liudengyuan
    replied
    grgrgrgr

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  • kt315
    replied

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  • payam20
    replied
    hi dear kt13

    ty for your video
    have u made it your self ? I am really intrested in tow box they are perfect and most of them have good depth in ground . and u can easilly make your changes 2 it and make it what u want . i have mad 2 box sasho it was well but i want to enhance it . (it could find a 15*15 shhet of copper in 140 cm but i think by som changes it can detect it in 2 m ) and i have test it in ground 2 and resualts was perfect its depth is 90% of the depth in air .

    i will be glad 2 work on it with u .

    Leave a comment:


  • Funfinder
    replied
    A horizontally positioned coil combined with a vertically one - this can't work well ...

    And if somebody hold this thing infront of his belly its completly uncomfortable,
    otherwise its only possible to search a small track either to the left or to the right.

    With a sweeping 50cm coil someone gets much better results, especially because
    such a coil doesn't misses all the other interesting objects, even if someone can still ignore them.

    Leave a comment:


  • kt315
    replied

    Leave a comment:


  • kt315
    replied
    Originally posted by AurumKid View Post
    What is DBP2010? is it the same as XR71 and Delta Pulse? which PI is good and can penetrate deeper?
    DBP2010 was before Sniffer XR-7. XR-7 is same like DPB2010. after XR-7 was born XR-71, that is Delta Pulse (a copy clone of some German detector). DP is good.

    Leave a comment:


  • liudengyuan
    replied
    sd2000

    Leave a comment:


  • Funfinder
    replied
    @ payam20

    look at google for: silver plated alu wire


    Seems its for necklaces or whatever, but seen from the electric attributes, it would be perfect for md coils !!!



    @ landman

    Thx for the depth stats but I'm sorry, those won't help you much further.

    The 1st png is pulse induction without useful metal discrimination and the 2nd -
    Golden King vs. DeepHunter is false, because the Nokta values are not practicable!

    Already in 2009 the Jeohunter and the Golden King have had almost the same depth values -
    the Jeohunter was a bit deeper - it is built more stable and with better coil, even better PCB.
    Because the creators of the Jeohunter did concentrate their whole work on metal detection and
    not creating some milk-giving-wool-chicken with all kind of additional gimmicks, bells and whistles.

    Meanwhile the DeepHunter for shure is minimum 5-10% deeper as the Golden King because
    the creators of those detectors are brothers and they have their own special competition running.
    But what counts much more are the great additional - usage and handling - improvements
    of the DeepHunter and that it also works with high sensitive and lighweight motion-coils.

    btw. The following also is an interesting table -

    especially for comparing with the attached one.
    Attached Files

    Leave a comment:

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