Current-voltage converter for the measurement of weak current capable of working under strong x or radiation

The invention concerns a current-voltage converter comprising electronic means (3,R) to supply a voltage (Vout)from a current (Iph). The converter comprises first means (4, K) to apply or not apply the current at converter input, second means (ECH1) to sample and memorize a voltage (Vout1) at conver...

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Hauptverfasser: CHAMBAUD PASCAL, KAIS MIKAEL, JOFFRE FRANCIS
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creator CHAMBAUD PASCAL
KAIS MIKAEL
JOFFRE FRANCIS
description The invention concerns a current-voltage converter comprising electronic means (3,R) to supply a voltage (Vout)from a current (Iph). The converter comprises first means (4, K) to apply or not apply the current at converter input, second means (ECH1) to sample and memorize a voltage (Vout1) at converter output when the current is applied at converter input, third means (ECH2) to sample and memorize a voltage (Vout2, Vout3) at converter output when the current is not applied at converter input, and fourth means (S) for subtracting the voltage sampled and memorized by the third means (ECH2) from the voltage sampled and memorized by the second means (ECH1). The invention applies more especially to the measurement of weak currents in severe nuclear environments.
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subjects ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
MEASUREMENT OF NUCLEAR OR X-RADIATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
PHYSICS
SEMICONDUCTOR DEVICES
TARIFF METERING APPARATUS
TESTING
title Current-voltage converter for the measurement of weak current capable of working under strong x or radiation
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