G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 27/00 (2006.01) G01D 5/24 (2006.01) G01L 9/00 (2006.01) G01L 9/12 (2006.01) G01M 17/007 (2006.01)
Patent
CA 2305317
The invention relates to a sensor (1), especially a micromechanical pressure sensor with two similar capacitive partial structures (C1, C2) which are coupled to an evaluation circuit (9, 11). In the case of in-phase control, an additive signal is provided as a pressure-dependent useful signal. In the case of opposite phase control, a differential signal is provided as a diagnostic signal.
L'invention concerne un détecteur (1), notamment un détecteur de pression micromécanique comprenant deux structures partielles capacitives (C1, C2) semblables couplées à un circuit d'évaluation (9, 11). En cas de commande en phase, on dispose d'un signal additif sous forme de signal utile fonction de la pression. En cas de commande en opposition de phase, on dispose d'un signal différentiel sous forme de signal de diagnostic.
Draxelmayr Dieter
Timme Hans-Jorg
Fetherstonhaugh & Co.
Infineon Technologies Ag
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