how to calculate the humidity using the humidity sensor HH10

Guest
can somebody tell me how to calculate the humidity from the data taken
from the eeprom of the sensor HH10D.
 
<suraj84p@gmail.com> wrote in message
news:103e30bd-378a-492e-997f-3d4c6a9aea9e@i12g2000prf.googlegroups.com...
can somebody tell me how to calculate the humidity from the data taken
from the eeprom of the sensor HH10D
..

Google turns up the PDF datasheet:

http://www.hoperf.com/pdf/hh10d.pdf

Page 3 shows the sums needed.

HTH

Graham w.
 
can somebody tell me how to calculate the humidity from the data taken
from the eeprom of the sensor HH10D.
Did you read the data sheet?

Are you measuring the frequency it is sending out? Can you
read the data from the eeprom?

--
These are my opinions, not necessarily my employer's. I hate spam.
 
On Sun, 2 Dec 2007 12:02:51 -0000, the renowned "Graham W"
<graham@his.com.puter.INVALID> wrote:

suraj84p@gmail.com> wrote in message
news:103e30bd-378a-492e-997f-3d4c6a9aea9e@i12g2000prf.googlegroups.com...
can somebody tell me how to calculate the humidity from the data taken
from the eeprom of the sensor HH10D
.

Google turns up the PDF datasheet:

http://www.hoperf.com/pdf/hh10d.pdf

Page 3 shows the sums needed.

HTH

Graham w.
You're supposed to read calibration factor "TCS", but it's not used.
Presumably the temperature coefficient, which would require a separate
measurement of temperature if you need temperature compensation, and
an equation which is not given. The old Philips capacitive sensors
changed 0.1%/K typically, as well as being fairly nonlinear above 60%
RH, but I suppose this thing is okay for low-end consumer goods.


Best regards,
Spehro Pefhany
--
"it's the network..." "The Journey is the reward"
speff@interlog.com Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog Info for designers: http://www.speff.com
 

Welcome to EDABoard.com

Sponsor

Back
Top