Date: Wed Oct 28 14:58:45 2009 ** **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.

=20

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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