In-cylinder pressure measurement utilizing a magneto-elastic element for measuring a force exerted on an engine valve assembly
US9857244B2 · kind B2 · utility
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12References
22Claims
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Key dates
| Filing date | Sep 2, 2014 |
| Grant date | Jan 2, 2018 |
| Priority date | — |
| Expiry date | Dec 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L23/14
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A force sensor can include a magnetic field generator, a magnetic flux return, and a magneto-elastic layer. The magnetic flux return can extend along a first portion of at least one pathway of magnetic flux generated by the magnetic field generator. The magneto-elastic layer can be operable to be in contact with a surface subjected to force and thereby strained. The magneto-elastic layer can extend along a second portion of the at least one pathway of magnetic flux distinct from the first portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.