公开(公告)号：KR1020120077545A

公开(公告)日：2012-07-10

申请号：KR1020100139540

申请日：2010-12-30

Applicant: 국방과학연구소

Inventor： 성상경 ,  송진우 ,  이정신

IPC: G01H13/00

CPC classification number: G01H13/00

Abstract: PURPOSE: A method for measuring a resonance type sensor strong to disturbance and a resonance control loop system are provided to stably measure input physical amount because the influence of disturbance is reduce by automatically tracing a resonance point and maintaining constant amplitude. CONSTITUTION: A resonance control loop system comprises a sensor displacement detecting unit(300), a resonance point tracer(400), an amplitude control loop(500), and a sensor driving input unit(100). The sensor displacement detecting unit detects displacement signals by reading a frequency changing amount of a weight body vibrating by an input physical quantity from a detection electrode. The resonance tracer generates phase lock signals based on the changed displacement signals. The amplitude control loop generates amplitude control signals of vibration based on the changed displacement signals. The sensor driving input unit generates a driving voltage for driving the weight body based on the phase lock signals and amplitude control signals.

Abstract translation: 目的：提供一种用于测量强干扰的谐振型传感器和谐振控制回路系统的方法，以稳定地测量输入物理量，因为通过自动跟踪谐振点并保持恒定幅度来减小干扰的影响。 构成：谐振控制回路系统包括传感器位移检测单元（300），谐振点示踪器（400），振幅控制回路（500）和传感器驱动输入单元（100）。 传感器位移检测单元通过从检测电极读入输入物理量振动的体重体的频率变化量来检测位移信号。 谐振示踪器基于改变的位移信号产生锁相信号。 幅度控制环路基于改变的位移信号产生振动的振幅控制信号。 传感器驱动输入单元基于锁相信号和振幅控制信号产生用于驱动配重体的驱动电压。