Ultrasonic centering apparatus
US4201971A · kind A · utility
5Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 14, 1978 |
| Grant date | May 6, 1980 |
| Priority date | — |
| Expiry date | Apr 14, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E30/30
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An ultrasonic centering apparatus, wherein it comprises at least one ultrasonic transducer placed within an enclosure, said transducer transmitting at least one ultrasonic wave, means for collecting the different ultrasonic echos from the walls of said enclosure, means for measuring the time gap separating the reception of the different echos and means for displacing the transducer or transducers until the different echos are received at the same time by said echo receiving means. A particular application of the invention is to the centering of inspection equipment in the tubes of nuclear reactor vessels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.