For compensation of the soil structure, the measuring point is calibrated. The water content of the measurement location is frozen with liquid nitrogen and a reference measurement is taken. The dielectric constant changes from about 78 (water) to 3.1 (ice)
The necessary calculations, developed and patented by Research Center Karlsruhe, are done on a pc by means of an easy-to-use program.
| For calibration of the measurement place the tube is filled with liquid nitrogen | |
|
after about 1 hour, the soil around the tube is frozen, and the first reference measurement can be taken. |
May 1999, Meteolabor reserves the right to make changes without further notice
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