Acoustic-based rotating component analysis
US8326582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2009 |
| Grant date | Dec 4, 2012 |
| Priority date | — |
| Expiry date | Feb 3, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/2696
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An acoustic sensor acquires acoustic data corresponding to a rotating component of a machine during operation of the machine. The acoustic sensor can be configured to enhance acoustic signals in a range of frequencies corresponding to at least one evaluated condition of the rotating component and/or enhance the acoustic signals received from a directional area narrowly focused on the rotating component. The rotating component is evaluated using the acoustic data acquired by the acoustic sensor. In an embodiment, the machine can be a vehicle traveling past a parabolic microphone. In a more specific embodiment, the vehicle is a rail vehicle and the rotating component is a railroad wheel bearing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.