On Wed, 2008-02-27 at 19:23, [EMAIL PROTECTED] wrote: > In a message dated 2/27/2008 9:54:12 A.M. Pacific Standard Time, > [EMAIL PROTECTED] writes: > Well, I've convinced myself that the Radio Shack portable ESD mat, P/N > 276-2370 doesn't work properly. > <explanation deleted>
> Al N1AL > > > _______________________________________________ > Did the test standard you used tell you what the test device voltages should > be. Yes, they specify it be tested with both 10V and 100V. I used 15V for my test since that was convenient. > Also, most Static dissipative mats have a texture which can > significantly reduce the actual surface contact area affecting the readings > considerably. > I still think the best way to test is to fabricate a simple electrometer > and connect the sensor (after charging) to the surface through contact. That's basically what I did. I used electrodes similar to the standard ones specified in the standard. > One big point - Mats do age and > dry out becoming useless in a matter of a few years. Dry out? You mean they are wet? :=) Al N1AL _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
