| 摘要 |
PROBLEM TO BE SOLVED: To facilitate acquisition of a defect echo waveform, and to enhance the detection precision of a defect position, by enabling an ultrasonic flow detector to form and display B-scope images or an image by an angle beam method with a simple formation. SOLUTION: The portable ultrasonic flaw detector 10 is a device by which inner scope images, such as B-scope images, are displayed, and is equipped with an encoder 51 having a moving part and a migration distance measuring instrument comprising a counter. The tip of the moving part is connected to an ultrasonic probe 36, and when the ultrasonic probe 36 is moved on a test object 38, the migration quantity is measured by the migration distance measuring instruments. The migration distance of the ultrasonic probe 36 is transmitted to an operation processing part of the flaw detector 10 body. The ultrasonic flaw detector 10 acquires the data of A-scope images 62, 65 and forms B-scope images 63, 66. When the same part of the test object 38 is scanned repeatedly by formation and display of the B-scope images, peak data of a defect echo waveform is superimposed and stored, and two or more of defect images 64, 67 are displayed by the B-scope images. It is formed as a storage-type B-scope display device. |
