ELECTRONIC SCANNING TYPE ULTRASONIC FLAW DETECTOR AND ELECTRONIC SCANNING TYPE ULTRASONIC FLAW DETECTING METHOD

摘要

PROBLEM TO BE SOLVED: To reduce the load of data processing while shortening an inspection time by correcting distance amplitude characteristics different at a plurality of flaw detection lines in an electronic scanning type ultrasonic flaw detector and an electronic scanning type ultrasonic flaw detecting method. ;SOLUTION: When ultrasonic flaw detection is performed by an electronic scanning type ultrasonic flaw detector, the difference between distance amplitude characteristics different at every flaw detection lines must be corrected after the collection of flaw detection data and much time is required in data processing. A standard test piece is used to measure distance amplitude characteristics of respective flaw detection lines and the difference with a flaw detection line becoming a standard is stored in a distance amplitude characteristic correction data memory means 11. Next, the ultrasonic flaw detection of an actual object to be inspected is performed and the correction operation of the flaw detection data obtained as a result and the data corresponding to the flaw detection line read from the distance amplitude characteristic correction data memory means is performed.;COPYRIGHT: (C)2000,JPO