Building a coil ?

[Mike T]

On one of the other Modification forums I saw pictures of homemade Explorer coils, there was alot of discussion about it.
My question is; can this really be done? for any detector? I'm getting a T2 and wonder how difficult would it be to build a smaller coil?

 

[Black Davy]

Mike,

You can make a coil for anything if you have the proper equipment. I just swapped to a new computer and need to load all my bookmarks to this one there are a few web sites that deal with making your own detectors and equipment. Charles of NY has a site the name eludes me he makes just about anything. Here is a link to a site go about 2/3 of the way down and you get to the coil building section.

http://www3.telus.net/chemelec/Projects/Projects.htm

Good Luck!

 

[Circle C Digger]

Mike,

Listed below is the link to the Geotech forum. This is a great site to get technical information on building your own MD equipment. Most of the forum members build or modify their own detectors and coils. The trick to building your own coil is to calculate the coil frequency. You will need to know the diameter and width of wire and turns of wire. I have also attached a link to Hays Electronics, which sells pre formed coil housings in many shapes and sizes. I too would like to build a smaller coil for a T2 so keep us posted on your progress. On the URL address, you need to replace the scibble with thunting .com in front of the geotech. Not sure why I can just write it on the URL address.

((http://www.thunting.com/geotech/forums/))

http://www.hayselectronics.com/parts.htm

Good luck
Circle C Digger

 

[Circle C Digger]

There is a thred in Geotech called JACKDETECT'S PROJECT. It tells how to build a coil based of of the Fisher Spider coil. Copy both sections of the URL address and it should take to to the site.


((http://www.thunting))
((.com/geotech/forums/showthread.php?t=12088&highlight=Fisher+Spider+coil))

 

[nymohawk]

You all got my interest when you started this thread...

Now let's get the research done and report back here in a week!

Sounds like a blast!

NYMohawk

 

[Circle C Digger]

This is a great paper by Carl Moreland. It describes in detail many coils designs currently used for metal detecting. If you want a better understanding on how coils work, check it out.

geotech.thunting. com/pages/metdet/info/coils.pdf

Circle C Digger

 

[nymohawk]

but if you take the space out fron the . com it will work!

Great link too!

 

[Circle C Digger]

For some reason that was the only way I could get the URL address to post on the forum.

So far for my coil building project, I've managed to get an Oscilloscope and an LCR meter to determine the T2 coil specs. Been doing a lot of research on how to build a coil. I'm going to attempt to build an inline probe and a 6" search coil. I have been corresponding with a couple of experienced coil builders. Nulling the coil is the tricky part. Wish me luck.

Circle C Digger