Rotational acceleration detector with microdot coding
US4808817A · kind A · utility
3Cited by
13References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 23, 1987 |
| Grant date | Feb 28, 1989 |
| Priority date | — |
| Expiry date | Nov 23, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P15/18
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system for detecting angular, radial and axial accelerations of rotating machinery parts to facilitate vibrational analysis of the parts. An annular array of micro dots is disposed on the rotating machinery part generally concentric with the axis of rotation of the part. A stationary high resolution photodetector is located for reading the micro dot patterns of movement of the annular array of dots as the array tangentially passes the photodetector. A conditioning circuit is coupled to the detector for conditioning a signal received from the detector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.