Excerpt from Soil-Moisture Measurement With the Fiberglas Instrument Each of these units Operates on the principle that resistance to the passage of an electrical current through the unit will depend on its moisture content. Buried in the soil, the porous material of the unit wets and dries along with the soil around it, and the changes in moisture content affect the electrical conductivity of the unit. Wires lead from the unit to the surface of the ground, where the resistance of the unit is read with a meter. To convert ...
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Excerpt from Soil-Moisture Measurement With the Fiberglas Instrument Each of these units Operates on the principle that resistance to the passage of an electrical current through the unit will depend on its moisture content. Buried in the soil, the porous material of the unit wets and dries along with the soil around it, and the changes in moisture content affect the electrical conductivity of the unit. Wires lead from the unit to the surface of the ground, where the resistance of the unit is read with a meter. To convert resistance readings to soil moisture values requires calibration of the units in the soil being studied. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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