Applicant: Université de Reims Champagne-Ardenne, France
This invention relates to a device for monitoring the vibration generated by a bearing of a machine formed by two coaxial races - an outer race and an inner race, with one fixed with respect to the frame of a machine and the other rotating. At least one rolling element, trapped between the races, is able to move. The device has at least one (non-conductive) means of positioning, which is mounted on an element (and in contact with an element of the bearing). This positions a conductive element to form the first plate of a capacitor (which is part of a capacitive sensor) at a distance from a conductive part of a race of the bearing, forming the second plate of the capacitor. The means of positioning is secured to a partitioning unit so as to create an insulating medium between the two plates.
Patent number: WO/2009/016289
Inventors: P. Marconnet, B. Pottier and L. Rasolofondraibe
Publication date: 5 February 2009
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