ekS - Instytut Agrofizyki im. Bohdana DobrzaÅskiego PAN w Lublinie ...
ekS - Instytut Agrofizyki im. Bohdana DobrzaÅskiego PAN w Lublinie ...
ekS - Instytut Agrofizyki im. Bohdana DobrzaÅskiego PAN w Lublinie ...
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The user interface on the main computer controlling the exper<strong>im</strong>ent is<br />
presented in Fig. 21. It consists of several fill-in places, which meanings are<br />
explained beside. Before the measurement starts, the user should input the initial<br />
parameters: upper and lower l<strong>im</strong>it regulation temperature and the temperature step<br />
of regulation.<br />
Fig. 21.<br />
Application window presenting the state of the conducted exper<strong>im</strong>ent<br />
The values presented in Fig. 21 inform that the measurement temperatures of<br />
soil samples will be in the range from 5°C to 55°C in 10°C steps. Also the active<br />
channels should be selected and choose the name of the output file for data<br />
storage. During the exper<strong>im</strong>ent the individual windows with current results are<br />
continuously updated. The measurement takes place when the values of air<br />
temperature in the temperature chamber (Tp), temperature of the tested soil<br />
samples (T0, T1, … or T7) and the current temperature of regulation reach the<br />
same value with ± 0.4 °C. Decreasing the tolerance is possible but it costs the<br />
significant increase of t<strong>im</strong>e for the temperature stabilization in the temperature<br />
chamber. For the initial values from Fig. 21 the complete measurement cycle<br />
covering the temperature range from 5°C to 55°C is done in about 12 hours.<br />
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