Title:
ULTRASONIC IMMERSION INSPECTION OF MEMBER HAVING ARBITRARY SURFACE CONTOUR
Document Type and Number:
Japanese Patent JP2015145872
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a method of inspecting a component having an uneven surface with an ultrasonic wave.SOLUTION: An inspection method (a) immerses a component in liquid, gives fluid coupling with thickness of several ultrasonic wavelengths between an ultrasonic probe consisting of an array body of a large number of small ultrasonic elements respectively having an ultrasonic beam spread and a component having an uneven surface, (b) scans the component with the ultrasonic beam while actuating the respective ultrasonic elements one by one, (c) stores an ultrasonic waveform emitted from the individual ultrasonic element in the array body for each actuation and reflected on the surface of the component and an ultrasonic waveform reflected on an internal reflection object of the component, measures the surface shape by sweeping the arrangement of the ultrasonic waveform data, calculates a signal processing parameter as a function of the position of the ultrasonic probe on the basis of the surface shape, and (d) performs correction with respect to the irregularity of the surface of the processed component by processing the data array using the signal processing parameter and calculates the inspection result of the reflection object inside the component.
Inventors:
MCLAUCHLAN DANIEL T
COX BRADLEY E
COX BRADLEY E
Application Number:
JP2015020696A
Publication Date:
August 13, 2015
Filing Date:
February 04, 2015
Export Citation:
Assignee:
BWX TECHNOLOGIES INC
International Classes:
G01N29/06; G01B17/06; G01B21/20; G01N29/26; G01N29/28; G01N29/44
Domestic Patent References:
| JPH01156661A | 1989-06-20 | |||
| JP2006138672A | 2006-06-01 | |||
| JPH09257759A | 1997-10-03 | |||
| JPS59148866A | 1984-08-25 | |||
| JPS61160053A | 1986-07-19 | |||
| JP2005300363A | 2005-10-27 | |||
| JPH0862191A | 1996-03-08 | |||
| JPH06102258A | 1994-04-15 |
Foreign References:
| US20050150300A1 | 2005-07-14 |
Attorney, Agent or Firm:
Axis International Patent Business Corporation