Ultrasonic method and apparatus for detecting leaks
US4719801A · kind A · utility
16Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 18, 1986 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Sep 18, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/048
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Seals in an automotive body are inspected for leaks by sensing ultrasonic energy passing through a seal. Either of an ultrasonic emitter or detector is scanned along a seal outside the body by a robot and the other is inside the body. The emitter operates at frequencies of 65 to 80 kHz and repetitively sweeps through a range of 6 kHz. The body may be either open or closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.