Capacitive sensor

Details Capacitive sensor Capacitive sensor

G - Physics

01

B

324/44, 73/72, 3

G01B 7/14 (2006.01) G01K 13/08 (2006.01) G01P 3/483 (2006.01)

Patent

CA 1307322

20104-8530 Abstract "Capacitive Sensor" The invention relates to a capacitive sensor for the measurement, under dynamic conditions, of at least one characteristic of a turbo-machine , this sensor comprising a conductive surface intended to be fixed to the casing near a succession of rotating blades to form the first plate of a capacitor, the second plate of which consists, in succession, of each one of the ends of the rotating blades when these ends pass in proximity to this conductive surface. This sensor comprises an electrical interconnection means to connect this conductive surface to first electrical detection means for measuring the variations of the capacitance of the capacitor thus formed. According to the invention, this electrical interconnection means also constitutes a means for connecting this conductive surface to second electrical detection means for measuring the temperature of the casing in the region of fixing of the said conductive surface.

594959

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