Measuring and testing – Vibration – By mechanical waves
Patent
1995-05-05
1996-10-22
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
73588, 73596, 73634, 73640, 73643, 73644, G01N 2400, G01N 2900
Patent
active
055678815
ABSTRACT:
An inspection apparatus and associated method includes a sensor housing defining an internal cavity in which a sensor is at least partially disposed for inspecting the surface of a structural part and for detecting defects in the surface and the substructure of the part. The inspection apparatus includes a plurality of compliant fibers extending outwardly from a first end of the sensor housing and circumferentially about an opening defined by the first end of the sensor housing. The compliant fibers support the sensor housing above the surface of the part and maintain the sensor in a predetermined position relative to the surface of the part. The plurality of compliant fibers are adapted to flex laterally to accommodate obstructions on the surface of the part, such as raised fasteners, doublers or lap joints while maintaining the sensor in the predetermined position relative to the surface of the part. Consequently, the sensor can continue to acquire accurate signals which indicate the presence of structural defects in the surface and the substructure of the part as the inspection apparatus moves over the obstructions which protrude upwardly from the surface of the part.
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If It Moves -> Seal It With Brush,Seal E-Z Corporation.
Device for Ultrasound Scanning of Curved Object, NASA Tech Briefs, vol. 19, No. 2, Feb., 1995, p. 50.
McDonnell Douglas Corporation
Moller Richard A.
Williams Hezron E.
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