Pico Temperature and Humidity

From LHEP Wiki
Revision as of 09:49, 18 March 2015 by Lhep (talk | contribs) (1 revision imported)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
  • 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 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