DEVICE MEASURING VARIATIONS OF RESISTANCE OF ROCKS Russian patent published in 1997 - IPC

Abstract RU 2084928 C1

FIELD: examination of dynamics of parameters of rocks. SUBSTANCE: device uses method of compensation of voltage from receiving dipole by current of supply diode with the use of one measurement path based on analog-to-digital converter and on time separation of process of measurement of voltage and current. It also uses method of detection and collection of information in digital form with the aid of reversible counter. EFFECT: enhanced accuracy of device. 3 dwg

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RU 2 084 928 C1

Authors

Ostashevskij M.G.

Sidorin A.Ja.

Dates

1997-07-20Published

1991-03-18Filed