GMR nanowire sensors
US9103654B1 · kind B1 · utility
4Cited by
7References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Dec 22, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/093
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A magnetic position sensor having at least one magnetic field sensor including a solidified layer of GMR nanowire carrier fluid formed on a substrate material. The solidified layer of carrier fluid has (i) discrete GMR nanowires each having a diameter of less than about 0.5 um and a length less than about 250 um; and (ii) a concentration of GMR nanowires in the dried layer between about 0.001 and about 10 percent by weight of the solution. The position sensor further includes a detection circuit capable of detecting a change in resistance of the magnetic field sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.