Patent ID: 9475689
Filing Date: 2016-10-25
CPC Classification: B81B,G01P

Claim Text:
1. A method of determining a parameter of a MEMS sensor in a system, comprising: generating an input signal including at least one high-frequency component selected to not cause physical oscillation of a moveable mechanical element of a MEMS sensor, and one low-frequency component selected to cause physical oscillation of a moveable mechanical element of a MEMS sensor; providing the input signal to a MEMS sensor comprising at least one moveable mechanical element to cause a modulated output signal comprising high and low frequency components to be provided from the MEMS sensor; de-modulating the modulated output signal provided by the MEMS sensor; filtering the de-modulated output signal to remove the high frequency components; and, evaluating the de-modulated, filtered signal to determine at least one characteristic of the MEMS sensor.