Bronze Rings

We have all found them, sometimes by the dozen but we do not definitely
know what they were used for. Have a look at the attached link for
some ideas:

http://www.ourpasthistory.com/md/rings.htm

(snip)
Lack of iron isn't surprising, what with discriminator detectors.

In my experience, if iron is ring-shaped, (washers for example), quite often
these give a positive signal even when discrimination is set to reject iron.
This phenomenon is due to the ring acting as an electrical "shorted turn"
which absorbs more transmitted coil energy than a similar solid target of
the same size.

	#1
GMP Tim	Bronze Rings We have all found them, sometimes by the dozen but we do not definitely know what they were used for. Have a look at the attached link for some ideas: http://www.ourpasthistory.com/md/rings.htm

	#2
Theo	Re: Bronze Rings (snip) Lack of iron isn't surprising, what with discriminator detectors. In my experience, if iron is ring-shaped, (washers for example), quite often these give a positive signal even when discrimination is set to reject iron. This phenomenon is due to the ring acting as an electrical "shorted turn" which absorbs more transmitted coil energy than a similar solid target of the same size.