System for outputting a plurality of signals as a collective representation of incremental movements of an object
US6356076B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1999 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Jul 15, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2451
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic incremental motion detection system for outputting a plurality of voltage and/or current signals in analog or digital form wherein the voltage and/or current signals are a collective representation of any incremental rotational, linear, or pivotal movement of an object. A target of the system is adjoined to an object to synchronously move with the object. A plurality of indications are adjoined to the target, and uniformly and serially disposed along an area of a surface of the target. The system further comprises one or more magnetic sensors spatially positioned from the area of the surface to define air gap areas therebetween. Each of the magnetic sensors are operable to output at least one analog signal in response to a synchronous movement of the target with the object. The outputted analog signals have the same duty cycle, and are consistently out of phase with each other by the same degree.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.