Force sensor recalibration
US10198125B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2017 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Apr 8, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04108
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments described herein include a method for calibrating capacitive force sensors. The method includes measuring a force level at each of a first electrode and a second electrode. The method also includes determining an expected force level at the second electrode based on the measured force level at the first electrode and a force contribution ratio for the second electrode. The method includes determining a difference between the measured force level at the second electrode and the expected force level at the second electrode and adjusting a force weighting factor for the second electrode in response to the difference exceeding a predetermined threshold to create an adjusted force weighting factor. The method also includes adjusting the measured force level at the second electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.