Synthetic aperture ultrasonic testing apparatus with shear and longitudinal wave modes
US4481822A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 1982 |
| Grant date | Nov 13, 1984 |
| Priority date | — |
| Expiry date | Oct 18, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S15/8959
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic synthetic aperture testing apparatus comprises transmitting/receiving sections having an ultrasonic wave probe for transmitting and receiving ultrasonic waves at multiple points on the surface of a steel material, an operation section for accumulating the received signals corresponding to the distance between the multiple points and a reproduction point in a desired region of the material under testing, and a display section for displaying an image formed as a result of this accumulation operation. The ultrasonic wave probe is provided with vibrators corresponding to the respective vibration modes so that two kinds of ultrasonic waves in different vibration modes may be transmitted and received. The accumulation section is provided with a mechanism which performs accumulation and arithmetic operation for the two kinds of waves in different modes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.