Hello all,
I was wondering if any of you may have some insight or experience
or recommendations about the following dilemma: We use a rather
complex keypad/front panel on one of our pieces of equipment. This
panel, in it's manufacture, consists of several different layers,
polycarbonate, adhesive. etc.. One of these layers is a shielding
material spec'd at 10ohms per square. We would like to go to a 20
ohms per square material but are cautious about the potential effects
on the EMC characteristics (emissions, esd, etc.). The window itself
is grounded by contact with a silver mesh which in turn is grounded
via conductive cement to studs that attach to the metal bezel. I
expect in comparison with the actual resistance of the ground path
the change from 10 to 20 ohms is small.
In the interest of time and money, the debate is to re-test or not,
and which tests... Any comments or help would be appreciated.
Thank you,
Lisa
[email protected]
