Sensor for detecting surface cracks in a component or structure
US8316696B2 · kind B2 · utility
0Cited by
4References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 4, 2007 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Jul 19, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/005
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor for detecting surface cracks in a component or structure. A preferred embodiment of the device comprises a flat body portion with a central hole through which a main structural bolt passes. The body portion has a throughway providing fluid communication between an exterior port and a substantially hermetically-sealed area on the structural surface being monitored. A crack which develops in the monitored area surrounding the bolt hole will cause venting of the hermetically-sealed area, in turn causing a change in fluid pressure that can be detected and/or measured to warn of the presence of the crack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.