• on Miscellaneous Electronics
  • Published in issue 9/2011 on page 44
About the article

Problems under pressure

E-Labs Inside section

Problems under pressure
Here at Elektor Labs, while testing a prototype of the USB Weather Station we came across a strange phenomenon. When measuring the relative humidity, the frequency generated by the sensor is subjected to a calculation in order to arrive at the displayed value. The prototype found the environment to be extremely humid, because we read a value of more than 150% on the display! Although the basement of our castle, where the lab is located, is quite humid, 150% is, of course, not possible.
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