Packages for coil actuated position sensors
US11073573B2 · kind B2 · utility
1Cited by
266References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2020 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Apr 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F2027/348
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus comprises a first substrate and two coils supported by the first substrate and arranged next to each other, the coils configured to each generate a magnetic field which produces eddy currents in and a reflected magnetic field from a conductive target, the two coils arranged so their respectively generated magnetic fields substantially cancel each other in an area between the coils. One or more magnetic field sensing elements are positioned in the area between the coils and configured to detect the reflected magnetic field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.