Magnetic tagging of magnetoresistive sensors
US7652471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2006 |
| Grant date | Jan 26, 2010 |
| Priority date | — |
| Expiry date | May 30, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/093
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnet's N and S polarity can be alternately assembled within a MR sensor housing to determine the type of sensor that is assembled. In an MR sensor package including a housing having a sensing face and adapted for containing a sensing transducer and magnet, it can be determined if the MR sensor package is to be an X-type or Y-type sensor by testing the MR sensor package prior to labeling, shipping and/or use to determine its type by measuring the magnetic field emanating from the sensing face using a magnetic gauss probe. During assembly, the magnets N or S polarity is positioned to face the sensing face of the sensor to indicate the sensor type.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.