Yes I have built several vibration tables from small up to one bearing a 100
kg load.  All they basically are is a motor with an off set weight on the
shaft. For high frequency stuff it is best to mount the offset weight on a
counter shaft and mount the countershaft bearings directly onto the
vibration table. Otherwise the weight of the motor damps out table
vibration. How you mount the table depends apon how many degrees of freedom
you want .... ie vertical or longtiudual. If it is not too important just
rob an old washing machine of the drum rubber anti vibration mounts and
mount the table on those. The base will vibrate as well as the table so make
it as heavy as you can (use sand or cement). If you want lateral movement as
well then you will need a second shaft.
         As for the ESD tool, I have used a piezo electric gas lighter to
test screened cables. 50,000 volts discharged near a cable finds a lot of
faults :-).          John Kent.
----- Original Message -----
From: "John Voth" <jvoth@SHAW.CA>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Wednesday, July 23, 2003 2:48 PM
Subject: [EE]: Vibration and ESD testing?


> Howdy PicListers!
>
> I'm doing some research on vibration and electrostatic discharge testing
> in preparation to build some test equipment. I am wondering if anyone
> out there has some experience building a vibration table and/or building
> an electrostatic discharge tool?
>
> TIA,
> John
>
> --
> http://www.piclist.com hint: The PICList is archived three different
> ways.  See http://www.piclist.com/#archives for details.

--
http://www.piclist.com#nomail Going offline? Don't AutoReply us!
email listserv@mitvma.mit.edu with SET PICList DIGEST in the body