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1. 发明授权

US09003884B2 Oscillation type inertia force sensor 有权
标题翻译：振荡式惯性力传感器
公开(公告)号：US09003884B2
公开(公告)日：2015-04-14
申请号：US13569209
申请日：2012-08-08
申请人： Yoshitaka Kato , Akira Mori , Makoto Narita , Yoshihiko Koizumi
发明人： Yoshitaka Kato , Akira Mori , Makoto Narita , Yoshihiko Koizumi
IPC分类号： G01C19/56 , G01C19/5776
CPC分类号： G01C19/5776
摘要： An oscillation type inertia force sensor includes an oscillator, an oscillation circuit unit, and a detection circuit unit. The oscillation circuit unit functions as a self oscillation circuit of a closed loop with the oscillator as a resonant element, and includes an AGC circuit. The AGC circuit includes a VGA circuit, a comparison circuit comparing a predetermined reference voltage with a voltage of the monitor signal to output a control signal based on the compared result, and a pulse width modulation circuit modulating the control signal to a pulse width modulation signal. Based on the pulse width modulation signal, the driving signal is modulated with the output of the VGA circuit switched between an ON state and OFF state to control the degree of the amplification factor of the VGA circuit.
摘要翻译：振荡型惯性力传感器包括振荡器，振荡电路单元和检测电路单元。振荡电路单元用作振荡器作为谐振元件的闭环的自振荡电路，并且包括AGC电路。 AGC电路包括VGA电路，将预定参考电压与监视信号的电压进行比较的比较电路，基于比较结果输出控制信号;以及脉宽调制电路，将控制信号调制为脉宽调制信号。基于脉宽调制信号，驱动信号被调制，VGA电路的输出在ON状态和OFF状态之间切换，以控制VGA电路的放大系数的程度。

2. 发明授权

US09021879B2 Oscillation type inertia force sensor 有权
标题翻译：振荡式惯性力传感器
公开(公告)号：US09021879B2
公开(公告)日：2015-05-05
申请号：US13569207
申请日：2012-08-08
申请人： Yoshitaka Kato , Akira Mori , Makoto Narita
发明人： Yoshitaka Kato , Akira Mori , Makoto Narita
IPC分类号： G01C19/56 , G01C19/5776
CPC分类号： G01C19/56 , G01C19/5776
摘要： An inertia force sensor that shortens a time from power activation until inertia force can be detected includes an oscillator, an oscillation circuit unit, and a detection circuit unit. The oscillation circuit unit functions as a closed loop self oscillation circuit with the oscillator as a resonant element, and includes a CV conversion circuit converting a monitor signal based on electrostatic capacitance according to an oscillating state of oscillator into a monitor signal based on a voltage corresponding to an amount in change of the electrostatic capacitance, and an automatic gain control circuit controlling gain based on the monitor signal converted at the CV conversion circuit to generate a driving signal, and supplying the driving signal to the oscillator. The CV conversion circuit includes an amplifier that amplifies a monitor signal with an amplification factor for a predetermined period after power activation.
摘要翻译：能够检测从动力激活到惯性力的时间缩短的惯性力传感器包括振荡器，振荡电路单元和检测电路单元。振荡电路单元用作振荡器作为谐振元件的闭环自振荡电路，并且包括CV转换电路，其基于相应的电压将基于振荡器的振荡状态的基于静电电容的监视信号转换为监视信号以及静电电容变化量的自动增益控制电路，以及基于在CV转换电路处转换的监视信号来控制增益的自动增益控制电路，以产生驱动信号，并向振荡器提供驱动信号。 CV转换电路包括放大器，其在功率激活之后以预定时间段的放大因子放大监视信号。

3. 发明授权

US07353705B2 Oscillation type intertial force sensor 有权
标题翻译：振荡式中间力传感器
公开(公告)号：US07353705B2
公开(公告)日：2008-04-08
申请号：US11682990
申请日：2007-03-07
申请人： Akira Mori , Iku Nagai , Kazushige Sawada , Makoto Narita
发明人： Akira Mori , Iku Nagai , Kazushige Sawada , Makoto Narita
IPC分类号： G01P9/04 , G01P19/56
CPC分类号： G01C19/5776
摘要： The oscillation type inertial force sensor includes an oscillator arranged to detect an inertial force, an oscillation circuit unit arranged to drive the oscillator, and a signal processing circuit unit arranged to generate a signal according to the magnitude of the inertial force on the basis of a detection output of the oscillator, and further includes a holding arranged to hold a processed signal in the signal processing circuit unit at a predetermined potential during a period immediately after power-on until operation of the oscillation circuit unit becomes stable in response to power-on.
摘要翻译：振荡型惯性力传感器包括：检测惯性力的振荡器;驱动振荡器的振荡电路单元;以及信号处理电路单元，被配置为根据惯性力的大小生成信号振荡器的检测输出，并且还包括保持器，其布置成在紧接着上电之后的周期期间将信号处理电路单元中的处理信号保持在预定电位，直到振荡电路单元的操作响应于上电而变得稳定。

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