公开(公告)号：US20130167643A1

公开(公告)日：2013-07-04

申请号：US13721721

申请日：2012-12-20

Applicant: STMicroelectronics S.r.l.

Inventor： Nicolo Nizza ,  Paolo Pascale ,  Andrea Diruzza ,  Michele Berto Boscolo

IPC: G01N29/36

CPC classification number: G01N29/36 ,  G01H11/00 ,  G01H13/00

Abstract: A method determines a resonance frequency of a resonant device. The method includes stimulating the resonant device with a periodic input signal having a frequency in a frequency interval; determining a frequency value for said periodic input signal in said frequency interval for which a phase-difference between said periodic input signal and a corresponding periodic output signal of the resonant device is minimum; generating a flag indicating that a resonance frequency has been determined; and generating signals representing said resonance frequency as a value of the frequency of said periodic input signal.

Abstract translation: 一种方法确定谐振装置的谐振频率。 该方法包括用具有频率间隔的频率的周期性输入信号来刺激谐振装置; 确定所述周期性输入信号和所述谐振装置的相应周期性输出信号之间的相位差最小的所述频率间隔中的所述周期性输入信号的频率值; 产生指示已经确定了共振频率的标志; 以及产生表示所述谐振频率的信号作为所述周期性输入信号的频率的值。

公开(公告)号：US09709533B2

公开(公告)日：2017-07-18

申请号：US13721721

申请日：2012-12-20

Applicant: STMicroelectronics S.r.l.

Inventor： Nicolo Nizza ,  Paolo Pascale ,  Andrea Diruzza ,  Michele Berto Boscolo

IPC: G01H11/00 ,  G01N29/36 ,  G01H13/00

CPC classification number: G01N29/36 ,  G01H11/00 ,  G01H13/00

Abstract: A method determines a resonance frequency of a resonant device. The method includes stimulating the resonant device with a periodic input signal having a frequency in a frequency interval; determining a frequency value for said periodic input signal in said frequency interval for which a phase-difference between said periodic input signal and a corresponding periodic output signal of the resonant device is minimum; generating a flag indicating that a resonance frequency has been determined; and generating signals representing said resonance frequency as a value of the frequency of said periodic input signal.