Process and device for dynamic measurement of the axial deformation of a rotating hollow shaft
US7634948B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2007 |
| Grant date | Dec 22, 2009 |
| Priority date | — |
| Expiry date | Dec 17, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L5/12
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A process and device for dynamic measurement of the axial deformation of a rotating hollow shaft (10), a glass fiber segment (16) of a fiber optic sensor (18) being attached securely to a section of the inside wall of the hollow shaft (10) extending in axial alignment with the shaft. A light signal produced by a light source (24) is injected into the glass fiber segment (16), and the light signal being detected by a detector (28) after passing through the glass fiber segment (16). Axial deformation of the section of the inside wall of the hollow shaft (10) is ascertained by determining axial deformation of the glass fiber segment (16) from the change of at least one parameter of the light signal that occurs when the light signal passes through the glass fiber segment (16).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.