Method for determining the quality factor of an oscillator
AssigneeCommissariat A L'energie Atomique Et Aux Energies Alternatives
InventorsAntoine NOWODZINSKI, Frédéric SOUCHON
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Abstract
A method for determining a quality factor of an electrostatically actuated oscillator, the oscillator having a resonance frequency, the method including generating an excitation voltage defined as being the sum of a sinusoidal voltage and a voltage pulse; applying the excitation voltage at the input of the oscillator; acquiring in the time domain a response voltage present at the output of the oscillator after having ceased applying the excitation voltage at the input of the oscillator; determining the quality factor of the oscillator from the response voltage acquired at the output of the oscillator.
Claims5
A method for determining a quality factor of an electrostatically actuated oscillator, the oscillator having a resonance frequency, the method comprising:
- estimating the resonance frequency of the oscillator;
- generating an excitation voltage defined as being a sum of a sinusoidal voltage having a constant frequency equal to the estimated resonance frequency and a pulse response of a low-pass filter;
- applying the excitation voltage at an input of the oscillator;
- acquiring in the time domain a response voltage present at an output of the oscillator after having ceased applying the excitation voltage at the input of the oscillator;
- determining the quality factor of the oscillator from the response voltage acquired at the output of the oscillator.
Dependencies are inferred from the claim text.