COIL NULLING

[6666]

Aiko
I think Don dfbowers did a write up on his concentric coil nulling.

[satdaveuk]

I do not know the correct phase-shift for this detector. You would need to get a commercial coil and measure it.

I agree with you Qiaozhi
you need to either get hold of a manufactures coil to copy or get reliable measurments from someone who has, and also bare in mind different coil sizes and types even though made for that particular model of detector will have different phase shifts, typical example of that is the TGS between there brown and web coils they produce which did suprise me.
Theres allot more to it than first meets the eye , infact the more coils built the more complicated it becomes lol

[Qiaozhi]

Theres allot more to it than first meets the eye , infact the more coils built the more complicated it becomes lol

Coil construction is a special subject all by itself.

[6666]

Aiko
have a look at the pdf at top of page.

http://www.geotech1.com/forums/showt...c-coil-for-IDX