FIELD: acoustic instrumentation engineering. SUBSTANCE: device for measuring electric conductivity of soil is essentially round conductivity metering cell whose bottom is movable dielectric base with central power electrode and two intake electrode built into it. Second power electrode is built into side post of cell. Base is coupled with rod passed through device handle. Cell is emptied from soil by pushing the rod which actuates movable base and makes it move and push soil out of cell. Base is reset by spring mounted in device handle. EFFECT: improved and simplified design. 2 dwg
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