See electrostatic fields!

[William Beaty]

[ Article crossposted from sci.electronics ]
[ Author was William Beaty ]
[ Posted on Thu, 20 Oct 1994 13:47:07 GMT ]

I just started up my first Web page, and posted some photos, text, and
diagrams about an exhibit device I designed while at the Museum of
Science in Boston.

It's an Array Electrometer based upon LEDs and JFETs. Hold a charged
object near the panel, and the patterns of dark and light LEDs give
a crude picture of the surrounding e-field.

Even single electrometer elements (an FET, LED, and 9v batt) are pretty
interesting to play with. Take a look:

http://www.eskimo.com/~billb

(this is a first try, so let me know if you encounter any bugs!)

==========================================================================
William J Beaty http://www.eskimo.com/~billb
EE/Programmer/Science exhibit designer
Seattle, WA 206-781-3320 bi...@eskimo.com
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.....................uuuu / oo \ uuuu........,.............................
William Beaty voice:206-781-3320 bbs:206-789-0775
EE/Programmer/Science exhibit designer http://www.eskimo.com/~billb/
Seattle, WA 98117
--
.....................uuuu / oo \ uuuu........,.............................
William Beaty voice:206-781-3320 bbs:206-789-0775
EE/Programmer/Science exhibit designer http://www.eskimo.com/~billb/
Seattle, WA 98117