Apparatus for isolating a sensor

• Main Authors: LANTING; MARK L, DAVIS; ALAN R, EDELEN; STEPHEN A
• Format: Patent
• Language: English
• Published: 20.09.1994
• Edition: 5
• Subjects: ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS; BLASTING; CONSTRUCTIONAL DETAILS OF INSTRUMENTS, OR COMPARABLE DETAILSOF OTHER APPARATUS, NOT OTHERWISE PROVIDED FOR; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENT DETAILS; LIGHTING; MEANS FOR DAMPING VIBRATION; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR; MECHANICAL ENGINEERING; PHYSICS; SHOCK-ABSORBERS; SPRINGS; TARIFF METERING APPARATUS; TESTING; THERMAL INSULATION IN GENERAL; WEAPONS

Apparatus is provided for isolating a sensor from a vibrating surface. The sensor has first and second spaced surfaces, a bore extending between the surfaces and a groove in the second surface. The apparatus includes a flanged sleeve adapted to extend through the bore to the vibrating surface. The sleeve is sufficiently long when extending through the bore to provide a first gap between the vibrating surface and the second surface of the sensor and sufficiently narrow when extending through the bore to provide a second gap between the sleeve and the sensor. The flange overlays the first surface of the sensor and the second gap. The apparatus also includes a bolt, which extends through the bore and into engagement with the vibrating surface, for attaching the sleeve to the vibrating surface. The apparatus also includes a first O-ring positioned between the first surface of the sensor and the sleeve flange and a second O-ring positioned in the groove of the second surface. The first O-ring spaces the sensor from the sleeve and the flange and the second O-ring is adapted to abut the vibrating surface and space the sensor from the vibrating surface and the sleeve, such that the sensor floats between the first and second O-rings in isolation from the sleeve and the vibrating surface.