Hans,
I have used Avalon in the past. They are located in San Diego. They took
as many parts for this unit as they could get a hold of when HP/Agilent quit
supporting it. The group has been very helpful to me before. Their phone
number is 1 (888) 542-8256. Their webpage is http://www.avalonte
Can anyone suggest someone that can repair an HP8568? Down to the component
level. I already had Agilent and a few other labs gladly charge me for an
evaluation to come back and say "assembly NLA" or no-longer-available. I
could use a good reference of an individual or company that can actually
rep
Andrew,
My firm has the technology to make optically transparent
magnetic shield. Optical transparency is better than 65%.
Costs relate to the requirement of how much
field of view
reduction of field
Please contact me directly, off the group.
- Robert -
Robert A.
To get an idea of metal thickness consider that a CD is coated with
50-80 nanometers of aluminum or gold. You can see through it when you
hold it up to a light source. 50 nm is one skin depth thick at 2
TeraHertz. Not much good for us. By the way, next time you get a CD you
don't need place it in a
We're trying to design a product that goes into a Zone 1 explosive atmosphere
using intrinsic safety as our protection method.
We have a version of the product that meets Zone 2 requirements
(non-incendive) and we were able to use active current limiting circuitry to
keep energy levels down.
We a
Chris,
A high permeability helps when the coating is thin- 1 skin depth or less. If
the coating is much thicker than one skin depth then a non-magnetic conductor
will be about as good as a magnetic conductor. If one has the depth, and the
opening diameter is not too great (<1/2 wavelength), the wa
ITO is commonly used to shield windows and anti-reflectance can be used to
reduce glare. I suspect the rainbow is due to poor quality and not to all
ITO coatings. The original patent holder of applying ITO to glass is Saleem
Shaikh of Thin Film Devices in Anaheim. www.tfdinc.com. Copper tape is
Probably not enough to help out the permeability much. Too bad.
From: owner-emc-p...@listserv.ieee.org
[mailto:owner-emc-p...@listserv.ieee.org] On Behalf Of John Woodgate
Sent: Friday, September 17, 2004 9:31 AM
To: emc-p...@ieee.org
Subject: Re: Germanium & ITO Window shielding effectiveness
In article <39f7060a00b5e946b516261c077441c02ea...@utexch1w.gnnettest.co
m>, Chris Maxwell writes
>No, I meant monel. I put the question mark after it because I knew
>that it was available as a shielding material; but unsure of its
>permeability. According to Laird technologies website, monel c
Whew,
Everybody is on the beam.
My two or three sentence reply has brought up a few questions. Let me
just say that I take no exception to anybody debating me regarding
electromagnetics...even though my surname is Maxwell. The genes have
thinned out over a few generations; so I make many "debat
Ken,
Your approach about eddy currents somewhat true, but not all. We would never
be in need of hign-mu materials then. You forget about skin effect that
limits your shielding effectiveness. As long as can provide enough material
thickness >> skin effect depth you are home free. Otherwise eddy cur
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