Rotation detecting sensor
US7046000B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 17, 2004 |
| Grant date | May 16, 2006 |
| Priority date | — |
| Expiry date | Nov 17, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D18/001
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed is a rotation detecting sensor suitable for use under a vibration-abundant condition as e.g. a sensor disposed in an automobile body for detecting rotation of an engine or ABS. The sensor includes a detecting element for detecting rotation of a rotary body as a change in a magnetic flux and outputting a signal and an integrated circuit for processing the amplified signal into a pulse corresponding to the detected rotation of the rotary body. The signal processing includes an initialization such as a gain adjustment for obtaining an appropriate gain for use in the subsequent process of conversion of the amplified signal to the pulse. According to this invention, a re-initialization is effected to obtain a new initial value such as a new gain if the previously effected initialization is determined inappropriate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.