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Treasure Hunting & Metal Detecting Forum Message Boards - Detector Hunter Whites Minelab Tesoro XP > Tech Talk > Metal Detectors > PI Designs & Deepseekers (Moderators: Eugene52, Cornelius) >

Program recomended to calculate coils?

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escorpio500 Topic starter

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	Program recomended to calculate coils? « on: January 23, 2011, 02:34:43 pm »

wich one program recomended to calculate coils (uH, R, longe, number of turns, etc)?. I need one link. Is for PI metal detectors. I need to bulid coils DD and single planar.

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GoldDigger1950

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	Re: Program recomended to calculate coils? « Reply #1 on: January 23, 2011, 02:59:51 pm »

Use Google to search for "air core coil formula" and you will find a few. Don't use the quotation marks, just the four words.

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	Re: Program recomended to calculate coils? « Reply #2 on: January 23, 2011, 03:13:43 pm »

Thanks, how you recomended to build a coil DD ? I have in my detector only two wires to the Coil. It is possible?

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	Re: Program recomended to calculate coils? « Reply #3 on: January 23, 2011, 03:20:57 pm »

It can be done but the coil won't function as a true DD coil. When you calculate your coil windings, add or subtract one to be sure they are even in number. Split the coil bunches into two and spin one like a coin and overlay it on the other with a slight overlap. Don't cut the wire, just do that reversal bit. That's all there is to it.

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	Re: Program recomended to calculate coils? « Reply #4 on: January 25, 2011, 01:36:46 am »

	Quote:	Posted by GoldDigger1950
It can be done but the coil won't function as a true DD coil. When you calculate your coil windings, add or subtract one to be sure they are even in number. Split the coil bunches into two and spin one like a coin and overlay it on the other with a slight overlap. Don't cut the wire, just do that reversal bit. That's all there is to it.