Generating timing signals
US9952247B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 21, 2015 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Jun 24, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K5/082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates generating timing signals registering the passage of a component past a sensor. The invention relates particularly to the generation of timing signals in real time for health monitoring of a mechanical system, for example for detecting excessive distortion or vibration of rotor blades in a turbine. In a disclosed arrangement, a method is provided in which a the sensor is configured to output a signal that is dependent on a separation between a component and the sensor, and the method comprises: performing a first passage event integral of an output from the sensor over at least a portion of a first passage event of a reference component past the sensor; performing a second passage event integral of an output from the sensor over at least a portion of a second passage event of a component to be measured past the sensor, the second passage event occurring after the first passage event; and generating a timing signal when the second passage event integral is equal to a predetermined fraction of the first passage event integral. By integrating the signal, short noise pulses will not cause timing errors. Optionally, only a part of the received signal will be integr…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.