Fault tolerant apparatus and method for determining a revolution rate of a gear
US6711513B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2002 |
| Grant date | Mar 23, 2004 |
| Priority date | — |
| Expiry date | May 2, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/489
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A measurement system and method for determining a revolution rate of a rotating gear is described. Such a rotating gear can be, for example, a turbine or compressor. The described measurement system and method, for example, can perform highly accurate measurements and can be a fault tolerant system providing high reliability. In one embodiment, an apparatus comprises an edge detector, a memory and a pulse-input engine. The edge detector is configured to receive an input signal and a counter signal. The edge detector is further configured to send a set of time values based on the input signal and the counter signal. The pulse-input engine is configured to measure a set of pulse-to-pulse delays based on the set of time values stored in the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.