Comparative assessment of signal cable impact in differential capacitive position measurements

Pasquale Arpaia, Ernesto De Matteis, Donato De Paola, Mateusz Sosin

Abstract

An experimental procedure for a systematic analysis of stability, precision and noise immunity of micrometric measurements based on capacitive sensors at varying cable configurations and installation conditions is proposed. First, the measurement problem arising from the interferences introduced by the cables and a background on the capacitive sensors in use at CERN (European Organization for Nuclear Research) is presented. Then, the proposed procedure, the test design and the measurement station are illustrated, by considering different cable types. Finally, the experimental validation of the procedure is reported.

Keywords

position measurement, capacitive sensors, electromagnetic compatibility

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IMEKO-TC4-2014-242.pdf

DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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