Measuring electronics as well as measuring system formed therewith

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United States of America Patent

PATENT NO 9304021
APP PUB NO 20150247747A1
SERIAL NO

14417286

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Abstract

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A measuring electronics serves for ascertaining a potential difference (Δφ12) between a first measuring electrode and a second measuring electrode. For such purpose, the measuring electronics comprises a reference electrode, an input circuit having two circuit inputs electrically connectable with the first, respectively second, measuring electrodes and two signal voltage outputs, a compensation circuit, a measuring and control circuit having two signal voltage inputs, two signal voltage inputs electrically and a compensation control output. The compensation circuit is adapted to provide on the first compensation voltage output a compensation voltage, namely an adjustable direct voltage referenced to the reference potential, and on the second compensation voltage output a compensation voltage, namely a direct voltage referenced to the reference potential. Additionally, the compensation circuit includes at least two operating modes selectable by means of a compensation control signal appliable on the control signal input, wherein in a first operating mode the compensation voltage is set at a predetermined voltage value, and in a second operating mode the compensation voltage is set at a predetermined voltage value. The measuring and control circuit, in turn, is adapted to provide on the compensation control output a compensation control signal for selecting one of the selectable operating modes of the compensation circuit.

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Patent Owner(s)

Patent OwnerAddress
ENDRESS + HAUSER FLOWTEC AG4153 REINACH

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kung, Thomas Basel, CH 7 4
Rufenacht, Markus Dornach, CH 6 7
Spahlinger, Andre Bad Bellingen, DE 7 7

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