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In trying to learn as much as possible about eddy curents and metal detectors, I ran across quite a bit of info on small solid state eddy current devices. the link http://www.sensorsmag.com/articles/0601/56/main.shtml
talks about small scale but interesting ideas that may apply or not to our interest.
the one thing I found of interest was the general discription of the sensor. Two or more magnetic materials as a sanwitch with a non magnetic conductive material between.
I have no idea if this as a rx coil configuration might even be feasible or where if might fit in a coil design, If the signal would be too weak or too strong or ??.
In another area,the use of 1020 mild steel as a sheild was found to work well and be used as a magnetic lens focusing the signal without leaking over to the rx side.
As I said I'm just starting to get a handle on a small part of this and may have stumbled on a nugget or leverite.
If any wish to add 2 cent in, please do.
wyndham
talks about small scale but interesting ideas that may apply or not to our interest.
the one thing I found of interest was the general discription of the sensor. Two or more magnetic materials as a sanwitch with a non magnetic conductive material between.
I have no idea if this as a rx coil configuration might even be feasible or where if might fit in a coil design, If the signal would be too weak or too strong or ??.
In another area,the use of 1020 mild steel as a sheild was found to work well and be used as a magnetic lens focusing the signal without leaking over to the rx side.
As I said I'm just starting to get a handle on a small part of this and may have stumbled on a nugget or leverite.
If any wish to add 2 cent in, please do.
wyndham