Metal Detectors...and tungsten carbide

[Mr. Burns]

Anybody have any experience with them?

I went to the park this morning to do my yoga stretches (see wild back issues in other threads) and managed to lose my wedding ring in some tallish grass...

it's about a 200x30ft perimeter of where I know it fell off my hand...

I spent the better part of 1hr scouring through where I think it fell, but had to get back to work.

I'll return at lunchtime.

if that fails, i'll be renting a metal detector.

i've googled to see whether tungsten carbide is picked up and they mostly say "yes" as it's conductive...

has anyone used one of these things?

any success when using one?

[Jorgen]

My understanding is yes should pick it up.

Good luck man, had my now exwife lose her wedding ring on the beach in south Carolina a few years back luckily the guy renting the house next to the place we were renting was always out wit a detector and found the damn thing for us. He definitely didn't pay for a drink the rest of his trip.

[10Toes]

The simplest form of a metal detector consists of an oscillator producing an alternating current that passes through a coil producing an alternating magnetic field. If a piece of electrically conductive metal is close to the coil, eddy currents will be induced in the metal, and this produces a magnetic field of its own. If another coil is used to measure the magnetic field (acting as a magnetometer), the change in the magnetic field due to the metallic object can be detected.

They should pick up anything that can carry a currant, tungsten is used in tig welders for the electrode.