CPC G01B 7/14 (2013.01) [G01D 5/20 (2013.01); G06F 1/1615 (2013.01); G06F 3/04845 (2013.01)] | 20 Claims |
1. A method for determining a position of a structure using inductive position sensing, the method comprising:
receiving a plurality of data points sampled from an analog to digital converter (ADC) and representing a plurality of voltages, the plurality of voltages being generated by a plurality of sensor coils based on a magnetic flux field, the magnetic flux field being generated by a plurality of driver coils, and the plurality of voltages varies with changes in the magnetic flux field;
calibrating the plurality of data points to generate a plurality of calibrated data points, wherein the plurality of calibrated data points are normalized at a common base voltage in response to the calibrating;
discarding a portion of the plurality of calibrated data points that are below a specified noise floor;
identifying a subset of the calibrated data points that remained after the discarding, wherein the identified subset of calibrated data points correspond to consecutive sensor coils with a highest combined signal-to-noise ratio (SNR); and
estimating a position of the structure based on the identified subset of calibrated data points, wherein the position of the structure indicates a size of a size changing device.
|