Rail sensing apparatus and method
US8305567B2 · kind B2 · utility
27Cited by
1References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2005 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | May 24, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M17/10
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rail sensing and analysis system utilizes a laser sensor 105, 107 to detect displacement of a rail 102, 104 resulting from loads imposed by a passing rail vehicle. Vertical and/or lateral displacements/loads may be sensed. Signatures in the resulting signals are indicative of useful information about the rail vehicle; such as wheel condition, bearing condition, truck condition, degree of bogie hunting, total load, load distribution, etc. The ratio of Lateral over Vertical force (L/V) may be used as an evaluation criterion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.