Estimation of gap between a proximity sensor and target
US11539364B2 · kind B2 · utility
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4References
17Claims
0Family size
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Key dates
| Filing date | May 31, 2019 |
| Grant date | Dec 27, 2022 |
| Priority date | — |
| Expiry date | Aug 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K17/9505
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A method is provided for sensing proximity of a target. The method includes sensing inductance associated with a magnetic field, wherein the inductance is affected by the target when the target is proximate the magnetic field. The method further includes providing the sensed inductance for processing. The processing includes determining an inductance value from at least the sensed inductance and estimating a parameter of a gap between a location of sensing the inductance and the target as a function of the inductance value and application of a nonlinear model of a relationship between the gap and inductance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.