Abstract: A method includes, in a living organ (28) in which an ambient pressure varies as a function of time, sensing the ambient pressure using a pressure sensor (36, 90, 174), which has a capacitance that varies in response to the ambient pressure, so as to produce a time-varying waveform. A calibration voltage, which modifies the capacitance and thus the time-varying waveform, is applied to the pressure sensor. The time-varying waveform is processed so as to isolate and measure a contribution of the calibration voltage to the waveform. A dependence of the capacitance on the ambient pressure is calibrated using the measured contribution of the calibration voltage.

Abstract: A method includes, in a living organ (28) in which an ambient pressure varies as a function of time, sensing the ambient pressure using a pressure sensor (36, 90, 174), which has a capacitance that varies in response to the ambient pressure, so as to produce a time-varying waveform. A calibration voltage, which modifies the capacitance and thus the time-varying waveform, is applied to the pressure sensor. The time-varying waveform is processed so as to isolate and measure a contribution of the calibration voltage to the waveform. A dependence of the capacitance on the ambient pressure is calibrated using the measured contribution of the calibration voltage.

Abstract: The present invention related to an apparatus and method to removing mechanical resonance of a system using internal control loop, and in more particularly, the internal control loop reduces the resonance factor of the system. The approach in the present invention is not sensitive to the system mechanical parameters changes within time and within temperature changes. The approach in the present invention creates mechanical platform with modified equation that have ? greater than 0.5 which eliminate the mechanical resonance from the system response. The system with resonance response can base on platform that includes the following components: MEMS devices, DC/AC motors and more.