Displacement sensing apparatus
US11977708B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 24, 2021 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Aug 24, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04106
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed a sensing apparatus having a frame element and a displaceable element mounted relative to the frame element. The sensing apparatus comprises a plurality of displacement sensor elements each configured to provide a displacement sensor output signal indicative of a displacement between the frame element and the displaceable element, wherein the plurality of displacement sensor elements are arranged at different spatial locations relative to the displaceable element and configured to provide a displacement sensor output signal indicative of a displacement between the frame element and the displaceable element at the respective spatial location. The sensing apparatus further comprises processing circuitry configured to obtain the displacement sensor output signals from the plurality of displacement sensor elements and determine whether displacement of the displaceable element is a valid displacement by comparing at least the ratio between the displacement sensor output signals to one or more expected ratios.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.