Sensor system and method for monitoring a powertrain
US10545060B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2015 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | May 8, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/085
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A sensor system (10) and method for monitoring a powertrain (20) having a drive shaft (1). The sensor system (10) comprises an optical fibre (2) with a strain sensitive element (3). According to one aspect, a connection structure (4) is configured to hold at least a part of the optical fibre (2) with the strain sensitive element (3) at a radial distance (R2-R1) remote from the drive shaft (1) for amplifying the strain (S2) on the strain sensitive element (3) with respect to the strain (51) on the drive shaft (1). According to a further aspect, at least three respective lengths of one or more optical fibres follow parallel, e.g. helical, paths with respect to each other to distinguish different strain forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.