Variable reluctance sensor interface with integration based arming threshold
US9103847B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 2012 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Apr 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01P3/489
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interface for processing a variable reluctance sensor signal provided by a variable reluctance sensor including an integrator, an arming comparator and a detect circuit. The integrator includes an input for receiving the variable reluctance sensor signal and an output providing an integrated signal indicative of total flux change of the variable reluctance sensor. The arming comparator compares the integrated signal with a predetermined arming threshold and provides an armed signal indicative thereof. The detect circuit provides a reset signal after the armed signal is provided to reset the integrator. A corresponding method of processing the variable reluctance sensor signal is also described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.