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    • 3. 发明授权
    • Accelerometer systems and methods
    • 加速度计系统和方法
    • US09229026B2
    • 2016-01-05
    • US13085900
    • 2011-04-13
    • Robert E. StewartDaryl SakaidaMichael D. BulatowiczMing LiJohn Thomson Douglass
    • Robert E. StewartDaryl SakaidaMichael D. BulatowiczMing LiJohn Thomson Douglass
    • G01P15/00G01P15/13G01C19/5705G01P15/125G01P15/08
    • G01P15/131G01C19/5705G01P15/125G01P2015/0834
    • An accelerometer system can include a sensor element comprising first and second proofmasses, the first proofmass accelerating in a first direction and the second proofmass accelerating in a second direction opposite the first direction in response to an external acceleration. A force rebalance controller applies control signals to at least one control element to provide a first force to accelerate the first proofmass toward a first null position and to at least one control element to provide a second force to accelerate the second proofmass toward a second null position. The force rebalance controller can also generate opposite polarity first and second output signals associated with respective displacements of the first and second proofmasses relative to the respective first and second null positions. An acceleration component calculates the external acceleration based on the first and second output signals.
    • 加速度计系统可以包括传感器元件,该传感器元件包括第一和第二校准物,第一校准物质沿第一方向加速,第二校正物质响应于外部加速度沿与第一方向相反的第二方向加速。 力重平衡控制器将控制信号施加到至少一个控制元件,以提供第一力,以将第一校正力朝着第一零位置加速,以及至少一个控制元件,以提供第二力以将第二校正力加速到第二零位置 。 力重平衡控制器还可以产生与第一和第二校准物相对于相应的第一和第二无效位置的相应位移相关联的相反极性的第一和第二输出信号。 加速度分量基于第一和第二输出信号来计算外部加速度。
    • 5. 发明申请
    • ACCELEROMETER SYSTEMS AND METHODS
    • 加速度计系统和方法
    • US20120265481A1
    • 2012-10-18
    • US13085900
    • 2011-04-13
    • ROBERT E. STEWARTDaryl SakaidaMichael D. BulatowiczMing LiJohn Thomson Douglass
    • ROBERT E. STEWARTDaryl SakaidaMichael D. BulatowiczMing LiJohn Thomson Douglass
    • G01P15/00
    • G01P15/131G01C19/5705G01P15/125G01P2015/0834
    • An accelerometer system can include a sensor element comprising first and second proofmasses, the first proofmass accelerating in a first direction and the second proofmass accelerating in a second direction opposite the first direction in response to an external acceleration. A force rebalance controller applies control signals to at least one control element to provide a first force to accelerate the first proofmass toward a first null position and to at least one control element to provide a second force to accelerate the second proofmass toward a second null position. The force rebalance controller can also generate opposite polarity first and second output signals associated with respective displacements of the first and second proofmasses relative to the respective first and second null positions. An acceleration component calculates the external acceleration based on the first and second output signals.
    • 加速度计系统可以包括传感器元件,该传感器元件包括第一和第二校准物,第一校准物质沿第一方向加速,第二校正物质响应于外部加速度沿与第一方向相反的第二方向加速。 力重平衡控制器将控制信号施加到至少一个控制元件,以提供第一力,以将第一校正力朝着第一零位置加速,以及至少一个控制元件,以提供第二力以将第二校正力加速到第二零位置 。 力重平衡控制器还可以产生与第一和第二校准物相对于相应的第一和第二无效位置的相应位移相关联的相反极性的第一和第二输出信号。 加速度分量基于第一和第二输出信号来计算外部加速度。