IMHO the worst con about this method is that it's useless below the freezing
point of the liquid being used (usually water). TTYL

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Vasile Surducan
> Sent: Friday, November 02, 2001 02:52
> To: PICLIST@MITVMA.MIT.EDU
> Subject: Re: [PIC]:HUMIDITY SENSOR.
>
>
> Dry/wet temperature measurement methode have the disadvantage of
> great errors.
> The name of the tools using this principle is psychometer, or absorption
> psychometer. And the error cames from response time of the wet temperature
> sensor and the problem of keeping clean the lithyum-clorure sock on this
> sensor. Also if you don't have a fan which continuously absorbe the
> unknown air on the sensors your humidity meter will show a false
> measurement.

--
http://www.piclist.com hint: To leave the PICList
mailto:piclist-unsubscribe-request@mitvma.mit.edu