Rotary position sensor using a strain gage
US6329897A · kind A · utility
4Cited by
15References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2001 |
| Grant date | Dec 11, 2001 |
| Priority date | — |
| Expiry date | Feb 14, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/183
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A rotary position sensor for sensing the position of an attached rotating object. The rotary position sensor has a housing and a volute shaped rotor having a variable width that varies about the circumference of the rotor. The rotor is positioned within the housing and is attached to the object. The rotor rotates as the object rotates. A strain gage is positioned in the housing. The rotor contacts the strain gage and applies strain thereto such the strain gage deflects according to the variable width of the rotor. The strain gage generates a variable electrical signal that is proportional to the rotational position of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.