Ultrasonic system for focusing at an oblique angle of incidence
US3974684A · kind A · utility
7Cited by
1References
7Claims
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Assignee
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Key dates
| Filing date | Mar 28, 1974 |
| Grant date | Aug 17, 1976 |
| Priority date | — |
| Expiry date | Mar 28, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/101
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
In a focusing ultrasonic system for detecting flaws in a part and obtaining a single focal point in the ambient medium, the ratio of the distances between the points of impact of the different rays of the ultrasonic beam on the separation surface of the part to the two focal points of the beam along two orthogonal planes as considered in the ambient medium is equal to: ##EQU1## WHERE I.sub.1 IS THE ANGLE OF INCIDENCE OF A RAY AND I.sub.2 IS ITS ANGLE OF REFRACTION.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.