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    • 3. 发明申请
    • Charge amplifier
    • 电荷放大器
    • US20060087370A1
    • 2006-04-27
    • US11253802
    • 2005-10-20
    • Takao TsuruharaHajime Ito
    • Takao TsuruharaHajime Ito
    • H03F1/36
    • H03F1/34H03F3/45475H03F3/70H03F2203/45522
    • In a charge amplifier, an operational amplifier is provided. The operational amplifier has an inverting input terminal, a non-inverting input terminal, and an output terminal. An adjustable feedback resistor element is provide to be connected between the inverting terminal and the output terminal. A resistance adjusting circuit is provided to be electrically connected to the adjustable feedback resistor element. The resistance adjusting circuit adjusts the resistance of the adjustable feedback resistor element to a first resistance during a first predetermined period after power-on. The resistance adjusting circuit also adjusts the resistance of the adjustable feedback resistor element to a second resistance after the first predetermined period has elapsed. The second resistance is higher than the first resistance.
    • 在电荷放大器中,提供运算放大器。 运算放大器具有反相输入端子,非反相输入端子和输出端子。 提供可调反馈电阻元件连接在反相端子和输出端子之间。 提供电阻调节电路以电连接到可调节反馈电阻器元件。 电阻调节电路在上电之后的第一预定时段期间将可调节反馈电阻元件的电阻调整为第一电阻。 电阻调节电路在经过第一预定周期之后,也将可调反馈电阻元件的电阻调整到第二电阻。 第二阻力高于第一阻力。
    • 4. 发明授权
    • Anomaly detector for vibratory angular rate sensor
    • 用于振动角速度传感器的异常检测器
    • US07292021B2
    • 2007-11-06
    • US11245453
    • 2005-10-07
    • Takao TsuruharaHajime ItoShunji Mase
    • Takao TsuruharaHajime ItoShunji Mase
    • G01R13/14G01P3/44G01P9/00G01P15/08
    • G01C19/5649
    • In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity DC amplitudes or opposite-phase alternating amplitudes. The first and second signals are combined to cancel the AC component of the oscillation signal to detect the DC component. The DC component is then compared with the upper and lower thresholds of a decision range to produce an alarm if the DC component goes outside the decision range. In one embodiment, the first and second signals are produced by detecting positive and negative peak values of the oscillation signal at intervals. In a second embodiment, the first signal is produced by high-pass filtering the oscillation signal as a replica of the AC component and the second signal is the oscillation signal itself.
    • 在检测振动检测电路等电路的振荡信号的异常状态的异常检测器中,将具有AC,DC成分的振荡信号转换为相反极性的DC振幅的一对第一和第二信号 或反相交变振幅。 组合第一和第二信号以消除振荡信号的AC分量以检测DC分量。 然后将DC分量与决策范围的上限和下限阈值进行比较,以在DC分量超出决策范围时产生报警。 在一个实施例中,通过以间隔检测振荡信号的正和负峰值来产生第一和第二信号。 在第二实施例中,第一信号是通过对作为AC分量的复制品的振荡信号进行高通滤波而产生的,第二信号是振荡信号本身。
    • 5. 发明申请
    • Anomaly detector for vibratory angular rate sensor
    • 用于振动角速度传感器的异常检测器
    • US20060077013A1
    • 2006-04-13
    • US11245453
    • 2005-10-07
    • Takao TsuruharaHajime ItoShunji Mase
    • Takao TsuruharaHajime ItoShunji Mase
    • H03B1/00
    • G01C19/5649
    • In an anomaly detector that detects an abnormal condition of an oscillation signal of a circuit such as a vibratory sensing circuit, the oscillation signal, having AC and DC components, is converted to a pair of first and second signals of either opposite-polarity DC amplitudes or opposite-phase alternating amplitudes. The first and second signals are combined to cancel the AC component of the oscillation signal to detect the DC component. The DC component is then compared with the upper and lower thresholds of a decision range to produce an alarm if the DC component goes outside the decision range. In one embodiment, the first and second signals are produced by detecting positive and negative peak values of the oscillation signal at intervals. In a second embodiment, the first signal is produced by high-pass filtering the oscillation signal as a replica of the AC component and the second signal is the oscillation signal itself.
    • 在检测振动检测电路等电路的振荡信号的异常状态的异常检测器中,将具有AC,DC成分的振荡信号转换为相反极性的DC振幅的一对第一和第二信号 或反相交变振幅。 组合第一和第二信号以消除振荡信号的AC分量以检测DC分量。 然后将DC分量与决策范围的上限和下限阈值进行比较,以在DC分量超出决策范围时产生报警。 在一个实施例中,通过以间隔检测振荡信号的正和负峰值来产生第一和第二信号。 在第二实施例中,第一信号是通过对作为AC分量的复制品的振荡信号进行高通滤波而产生的,第二信号是振荡信号本身。
    • 8. 发明申请
    • Vibration type angular rate sensor
    • 振动式角速度传感器
    • US20050274181A1
    • 2005-12-15
    • US11149431
    • 2005-06-10
    • Yuji KutsunaHajime Ito
    • Yuji KutsunaHajime Ito
    • G01C19/56G01C19/5726G01C19/5755G01P15/08
    • G01C19/5719G01C19/5726
    • An angular rate sensor has a vibrator vibrating along a reference direction at a fixed frequency in response to a driving signal, and vibrating along a detecting direction perpendicular to the reference direction in accordance with an angular velocity given to the vibrator. A monitoring signal generator generates a monitoring signal having a waveform of the vibrator vibration along the reference direction. A clock signal generator generates, from the monitoring signal, a first clock signal and a second clock signal having a frequency identical with that of the first clock signal and a level change occurring at a time differing from that in the second clock signal. The first clock signal is used to maintain the vibrator vibration along the reference direction. An angular velocity detector detects the angular velocity from a waveform of the vibrator vibration along the detecting direction by using the second clock signal.
    • 角速率传感器具有响应于驱动信号以固定频率沿着参考方向振动的振动器,并且根据给予振动器的角速度沿着垂直于参考方向的检测方向振动。 监视信号发生器产生具有沿参考方向的振动器振动的波形的监视信号。 时钟信号发生器从监视信号产生具有与第一时钟信号的频率相同的频率的第一时钟信号和第二时钟信号,以及在与第二时钟信号不同的时间发生的电平变化。 第一个时钟信号用于沿着参考方向保持振动器振动。 角速度检测器通过使用第二时钟信号来检测沿着检测方向的振动器振动的波形的角速度。