[Yaaarc] Re: Flutterbots and Firefighting

[Erik Kauppi]

We do have some tiny thermocouples, c'mon by.
I've also seen very good temperature sensors made with a reflector 
and a small surface mount (SOT23 or smaller) transistor as the sensor 
at the focal point.  The transistor has low mass and also has much 
more sensitivity.  IIRC it's -2mv / degree C, where there 
thermocouple is +4 uv / C.  Millivolts beats Microvolts every 
time.  We may have a suitable transistor laying around too.
We can talk about the optics also.

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At 10:46 PM 11/20/06, George Albercook wrote:
>Hi YAARC, Erik,
>
>I'm trying an experiment in my kitchen and I just don't have the right
>equipment. We just got back from the Canadian Robot Games. Flutterbots
>took 2nd and 3rd in the line following. We also had several robots in
>the firefighting. The problem we had was that the lights put out way
>too much UV and our detectors were all blind.
>
>I remember someone (I think it was Keith) saying that he had seen a
>very sensitive remote temperature measurement done with a thermocouple
>and a flashlight reflector. I was wondering if anyone had any
>knowledge/experience/information about that idea?
>
>Erik, I'm trying to get a measurement with a meat thermometer and a
>flashlight reflector. Do you have any tiny thermocouples that I could
>do a quick experiment on tomorrow afternoon?
>
>Is there still any interest in a YAAARC vs. OCRC robot contest?
>
>Regards,
>George Albercook

--- Erik Kauppi -- ekauppi at corsa-inst.com -- 734-761-1545 ---
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