Drift compensation for force sensing devices
US9885627B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 24, 2015 |
| Grant date | Feb 6, 2018 |
| Priority date | — |
| Expiry date | Apr 29, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L25/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Disclosed herein are methods and systems for compensating for drift that may be present in a force sensing device. In some embodiments, the force sensing device may be calibrated to compensate for the drift. The calibration may include receiving an input waveform associated with a received amount of force on the force sensing device. A system model that approximates a transfer function that provides an output waveform associated with the input waveform is then determined. Using the system model, an inverse transfer function associated with the system model is also determined. The inverse transfer function may then be applied to the output waveform which compensates for the drift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.