Acoustic method and apparatus for fracture detection of ball bearings
US7779691B2 · kind B2 · utility
2Cited by
17References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Jul 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M13/045
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for testing ball bearings includes applying a Hertzian contact stress on a ball bearing to provide a fracture of the ball bearing that releases acoustic energy, establishing a signal representing the acoustic energy, and identifying occurrence of the fracture based upon the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.