Patent ID: 9116097
Filing Date: 2015-08-25
Classification: G01N

Abstract:
1. A method of nondestructive inspection of a part, the method comprising: submerging a part fixture in a liquid bath, the fixture including a surface, a plurality of protrusions extending from the surface, and a fluid ingress aperture in the surface; placing the part on the fixture such that the part is in contact with at least some of the protrusions and is separated from the surface by a space; securing the part against the fixture by causing liquid flow into the fluid ingress aperture; and performing ultrasonic inspection of the part, by emitting ultrasonic waves from the probe into the part, while the part is secured against the fixture, wherein the ultrasonic waves have a wavelength, wherein portions of the protrusions in contact with the part have a shape or size sufficient to avoid detection by the ultrasonic inspection, wherein a thickness of each of the protrusions at the portion in contact with the part is no greater than one-half of the wavelength of the ultrasonic waves.