Title:
METHODS AND DEVICES FOR CALIBRATING CAPACITIVE RESONATORS
Document Type and Number:
WIPO Patent Application WO/2023/145430
Kind Code:
A1
Abstract:
A method of calibrating a resonator having a resonant member that can vibrate in a first mode of vibration, and a calibration electrode that is spaced from a capacitively coupled to the resonant member, the method comprises: applying a polarization voltage to the resonant member and a calibration voltage to the calibration electrode, wherein the polarization voltage is a negative voltage; vibrating the resonant member such that the resonant member vibrates in the first mode of vibration; measuring a frequency parameter of the resonant member; determining if the frequency parameter is in compliance with a predetermined threshold; and if the frequency parameter is not in compliance with the predetermined threshold, adjusting the frequency parameter to be in compliance with the predetermined threshold by adjusting at least one of the polarization voltage and the calibration voltage.
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Inventors:
SERRANO DIEGO
LIPKA RONALD
IVANOV EVGUENI
SULLIVAN DANIEL
LIPKA RONALD
IVANOV EVGUENI
SULLIVAN DANIEL
Application Number:
PCT/JP2023/000427
Publication Date:
August 03, 2023
Filing Date:
January 11, 2023
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G01C19/5684; H02M3/07
Domestic Patent References:
| WO2012078520A1 | 2012-06-14 | |||
| WO2011124576A1 | 2011-10-13 |
Foreign References:
| CN107482904A | 2017-12-15 | |||
| US20110080198A1 | 2011-04-07 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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