Subject:
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Re: Sensor Reliability
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Newsgroups:
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lugnet.robotics
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Date:
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Wed, 14 Jul 1999 12:34:46 GMT
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Viewed:
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856 times
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Chris <superpcer1@home.com> wrote in message news:FEsJBG.1J4@lugnet.com...
> You can try to build your own temperature sensor, and it costs much less
> that if you purchase it at Lego World Shop:
> http://www.plazaearth.com/usr/gasperi/temp.htm
>
>
> -Chris
Thanks for the website plug. The price is right, but it won't be calibrated
for either F or C. It seems the Radio Shack thermister has a little
different temperature/resistance slope from the LEGO one. I'd guess that
after somebody adjusted the setpoint to control a measured temperature, the
reliability would be good. LEGO stuff looks like it was built to take a lot
of abuse. You would need to use a good calibrated thermometer to adjust the
setpoint experimentally, a plug in the wall transformer to power the RCX and
set the RCX so it wouldn't automatically shutoff after 15min.
Mike G.
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Message has 1 Reply:
 | | Re: Sensor Reliability
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| (...) You can also get fairly good results from using boiling water and ice water for 100 C and 0 C respectively. It helps to put the ice water in a foam cup with a hole in the lid for the sensor, and leave it sit for a few minutes to give the water (...) (25 years ago, 14-Jul-99, to lugnet.robotics)
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Message is in Reply To:
| | Re: Sensor Reliability
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| You can try to build your own temperature sensor, and it costs much less that if you purchase it at Lego World Shop: (URL) Moffat <lego-robotics@crynwr.com> wrote in message news:F1C0175B5A2DD21...ech.com... (...) (25 years ago, 13-Jul-99, to lugnet.robotics)
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