Method and apparatus for determining the rotational rate of a rotating device
US6876167B1 · kind B1 · utility
10Cited by
14References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 24, 2003 |
| Grant date | Apr 5, 2005 |
| Priority date | — |
| Expiry date | Jul 17, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/48
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A non-invasive apparatus and method for measuring the speed of a rotating device that includes a sensor that measures a dynamic characteristic of the rotating device. A sample of the signal is transformed from the time domain into a frequency spectrum. The frequency spectrum is then analyzed to determine the motor speed. The resulting motor speed can be combined with other motor data by an order analysis to identify malfunctioning or improperly installed components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.