Re: how to transfer energy through the metal wall ??

In sci.optics [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
> Thanks, everyone, for your replies. I asked advice from a person, who
> allegedly did a lot of R&D on ultrasound devices for many years. His
> opinion was that in order to transfer effectively the sound energy
> through the metal wall, the whole construction (containig the metal
> wall) should be in resonance with the transmitted sound wave. This
<snip>
> The even further advice of the guy was to employ pulsing/alternating
> magnetic field to transfer the energy through the wall. Well, I could
> have some holes in it, covered with the non-ferromagnetic metal...

If you can make a hole, and cover it with non-ferromagnetic stuff, then
it's very probable that the easier solution is to drill a couple of holes
and screw in some gas-tight feedthroughs.
These are available so that they won't contaminate ultra-high-vacuum
when used in a high pressure enviroment.

-- 
http://inquisitor.i.am/    |  mailto:[EMAIL PROTECTED] |             Ian Stirling.
---------------------------+-------------------------+--------------------------
To do is to be
To be is to do
Do be do be do do