Drift Compensation for Force Sensing Devices

摘要

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.

主权项

1. A method for calibrating a force sensing device, the method comprising:
receiving an input waveform associated with a received amount of force on the force sensing device; determining a system model that approximates a transfer function that provides an output waveform associated with the input waveform; and determining an inverse transfer function to be applied to the output waveform, wherein the inverse transfer function compensates for drift associated with the force sensing device and manifest in the output waveform.