Vaisala Humidity 101 - Humidity Sensor Technology Tutorial
Vaisala Humidity 101 - Humidity Sensor Technology Tutorial
Vaisala Humidity 101 - Humidity Sensor Technology Tutorial
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Dewpoint Accuracy with standard<br />
polymer technology<br />
Dewpoint Measurement Uncertainty<br />
35<br />
30<br />
Td uncertainty (°C)<br />
25<br />
20<br />
15<br />
Dewpoint uncertainty corresponding to<br />
2%RH uncertainty without autocalibration<br />
Dewpoint uncertainty corresponding to<br />
1%RH uncertainty without autocalibration<br />
10<br />
Dewpoint uncertainty<br />
with autocalibration<br />
5<br />
0<br />
-60<br />
-55<br />
-50<br />
-45<br />
-40<br />
-35<br />
-30<br />
-25<br />
-20<br />
-15<br />
-10<br />
Td (°C)<br />
Note: For Td = -76 °F; RH = .08% - how can you get dewpoint accuracy with a polymer<br />
capacitor?<br />
Page 27 / 11/10/08 / BEMD / ©<strong>Vaisala</strong>
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