Re: Humidity Sensor Needed (Cheap!!!)

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Article #6314

#6314

From: CSMSMAS
Date: Wed, 26 Aug 1992 06:33

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In article <BtKDF8.4G8@cmptrc.lonestar.org>, on 26 Aug 1992 00:01:56 GMT,
neal@cmptrc.lonestar.org (Neal Howard) writes:
>Can anyone out there help me with my search for something to use as an
>electronic relative humidity sensor. So far my search has revealed the following
>methods for building a sensor device for use in constructing an electronic
>hygrometer I wish to interface to my PC:

Probably not what you are looking for, but you left out:

4).  Dew point measurment?
     Some temperature sensors, one solid state cooling device,
     an optical sensor, and some control circuitry...
     Wouldn't this be "self calibrating" (or only depend
     on the temperature sensor's accuracy)?
     I haven't tried this, just thought about it,
     (probably read about it somewhere...)

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From: CSMSMAS@MVS.OAC.UCLA.EDU (CSMSMAS)
Newsgroups: sci.electronics
Subject: Re: Humidity Sensor Needed (Cheap!!!)
Message-ID: <19920825233225CSMSMAS@MVS.OAC.UCLA.EDU>
Date: 26 Aug 92 06:33:23 GMT
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