Development of ultrasonic data recording system for three dimensionally curved components
- Toshiba Corp., Yokohama (Japan)
Semi-automatic man-machine system for ultrasonic inspection of three dimensionally curved components such as water pump impeller blade made of steel casting was investigated. In respect to the curved components inspection, results of the detected flaw data are very complicated because of surface configuration varies very much during the probe scanning. Therefore, much more reliable ultrasonic inspection technique and equipments have been required which are available for random probe scanning on a three dimensional curved surface in the field. The developed ultrasonic system is constructed of portable and handy manual scanning mechanism and ultrasonic data acquisition and processor. One of the feature of this system is that the precise defect location and defect sizing are conducted considering the three dimensional configuration of the components. In this paper, a measuring method of ultrasonic beam direction on curved surface was proposed, which is calculated by the collected search unit position data, and the effect of this method was verified. The position of reflectors were exactly decided according to the beam path length of detected echo signal, the probe refraction angle and the search unit position data. And as a results, the calculated reflector positions were automatically processed and analyzed for defect location and sizing, and defects image were three dimensionally displayed on CRT.
- OSTI ID:
- 86136
- Report Number(s):
- CONF-9505104-; ISBN 0-87170-548-6; TRN: IM9534%%208
- Resource Relation:
- Conference: 13. international conference on nondestructive evaluation in the nuclear and pressure vessel industries, Kyoto (Japan), 22-25 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of Proceedings of the 13. international conference on NDE in the nuclear and pressure vessel industries; Iida, Kunihiro [ed.] [Shibaura Inst. of Technology, Tokyo (Japan)]; Light, G.M [ed.] [Southwest Research Inst., San Antonio, TX (United States)]; Whittle, M.J. [ed.] [John Whittle and Associates, Cheshire (United Kingdom)]; PB: 503 p.
- Country of Publication:
- United States
- Language:
- English
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