Thanks Walter, I looked and came up with MIR. Very cool.

Incidentally I had a moment of brilliance (or rather the opposite) and
went onto Google and typed (amazingly) "Stud Finder Circuit" and came up
with...

http://www.howstuffworks.com/question271.htm

Title: I have an electronic stud finder and I am amazed at how well it
works. How does it know where the studs are?

Sorry for bothering the list - should have had this moment of
'brilliance' first.

Cheers,

Kevin


Walter Banks wrote:

> Very short range Radar. Look at the Lawrence Livermore Lab
> web site. It is very clever.
>
> w..
>
> Kevin Fisk wrote:
>
>>Anyone out there know how a wall "Stud Finder" works? I imagine a coil
>>with some sort of level detection but I am curious.
>>
>>Cheers,
>>
>>Kevin
>>
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