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Lhep at 09:19, 21 August 2008

2008-08-21T09:19:31Z

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* Description
Two Hygroclip sensors measure the temperature and the humidity in the scanning lab. The software is running on [[Mic4]] and produces a .txt and a .root file and a plot every day at midnight. Those files can be found at [http://lheppc46.unibe.ch/PicoLab/ Pico Data on pc 46].

* Software
The sofware runs right not on [[Mic4]]. It's a root based script and uses the Pico libraries. The script takes the temperature and the humidity of both sensors every second and makes a mean value of 60 measurements which then are written into a .txt and a .root file. At midnight, the two data files are closed, a plot of the last 24 hours is produced and two new files are created.

* Sensors
Two Hygroclip S sensors from ROTRONIC are used for the measurement.
Temperature repeatability accuracy: 0.1° C
Analog output signal: -0.4..0.85 V corresponding to -40..85° C
Humidity repeatability accuracy: 0.5% R.H.
Analog output singal: 0..1 V corresponding to 0..100% R.H.
The singals then are send to the Pico-ADC board
12 bit ADC board, 2^12 = 4096 steps in the range of 0..10 V
... however the input signal from the sensors is only in the range of 0..1 V

Pico Temperature and Humidity - Revision history

Lhep: 1 revision imported

Lhep at 09:19, 21 August 2008