Date: Wed Oct 28 14:58:45 2009
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**Back to Contents
Author: Zani, Gerald
Subject: Photogate w adjustable threshold
Post:
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Tappers,
=20
I am looking to find a photogate timer with an adjustable level for
threshold sensitivity. =20
=20
I need to detect the motion of something small that will only partially
block the IR light of a photogate.
=20
=20
Can anyone help? Thanks, - jz
=20
=20
=20
From: tap-l-owner@lists.ncsu.edu [mailto:tap-l-owner@lists.ncsu.edu] On
Behalf Of Thomas Senior
Sent: Wednesday, October 28, 2009 12:11 PM
To: tap-l
Subject: [tap-l] neon bulb sources
=20
My cheapest source of neon bulbs is "Kelvin.com" at $0.12 each in
quantities > 10. =20
=20
Are there cheaper sources out there?
=20
Tom Senior.
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Who thinks the cup of water in the microwave would change the standing
wave pattern.
=20
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**Tappers,**
** **
**I am looking to find a photogate timer with an adjustable = level for
threshold sensitivity. **
** **
**I need to detect the motion of something small that will = only
partially block the IR light of a photogate.**
** **
** **
**Can anyone help? Thanks, - jz**
** **
** **
** **
***From:= * tap-l-owner@lists.ncsu.edu
[mailto:tap-l-owner@lists.ncsu.edu] *On = Behalf Of *Thomas Senior
*Sent:* Wednesday, October 28, 2009 12:11 PM
*To:* tap-l
*Subject:* [tap-l] neon bulb sources**
** **
**My cheapest source = of neon bulbs is "Kelvin.com" at $0.12 each in
quantities > 10. **
** **
**Are there cheaper = sources out there?**
** **
**Tom = Senior.**
** **
**Who thinks the cup = of water in the microwave would change the
standing wave = pattern.**
** **
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From tap-l-owner@lists.ncsu.edu Wed Oct 28 14:58:45 2009
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