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    • 82. 发明授权
    • Piezoelectric acceleration timer
    • 压电加速定时器
    • US09001626B1
    • 2015-04-07
    • US13046121
    • 2011-03-11
    • Vadim OlenAnders P. WalkerAdrian A. HillMichael C. Meholensky
    • Vadim OlenAnders P. WalkerAdrian A. HillMichael C. Meholensky
    • G04F8/00G04F8/02
    • G04F8/02G04F8/006G04F10/00
    • A timer for measuring a time lapsed during an acceleration is disclosed. The timer may include a piezoelectric sensor, an energy storage device and a measurement module. The piezoelectric sensor includes a piezoelectric material for generating an electric potential in response to the acceleration. The energy storage device is electrically coupled to the piezoelectric sensor and is configured for receiving the electric potential generated by the piezoelectric sensor. The measurement module is electrically coupled to the energy storage device. The measurement module measures the electric potential received at the energy storage device and determines the time lapsed during the acceleration based on the electric potential received at the energy storage device.
    • 公开了一种用于测量加速期间经过的时间的定时器。 定时器可以包括压电传感器,能量存储装置和测量模块。 压电传感器包括用于响应于加速度产生电位的压电材料。 能量存储装置电耦合到压电传感器并且被配置为接收由压电传感器产生的电位。 测量模块电耦合到能量存储装置。 测量模块测量在能量存储装置处接收的电位,并且基于在能量存储装置处接收的电位来确定加速期间所经过的时间。
    • 84. 发明授权
    • Elapsed time indicator
    • 经过时间指标
    • US4207733A
    • 1980-06-17
    • US940479
    • 1978-09-07
    • Leonard H. CopelandJoseph B. Wible
    • Leonard H. CopelandJoseph B. Wible
    • G04F8/00G04B15/00G04B19/02
    • G04F8/006
    • An elapsed time indicator is provided which performs accurate and reliable time measurements. The device includes an indicator assembly having a plurality of numbered wheels drivingly coupled to a drive wheel having a plurality of upstanding peripheral teeth. A verge escapement mechanism employs a side acting verge member which moves in a predetermined plane and acts on only one side of the drive wheel. The peripheral teeth of the drive wheel cooperate with the verge member to move the drive wheel through predetermined intervals and drive the numbered wheels of the indicator assembly. An electromagnet pulsed by a solid state time base and driver circuit oscillates the verge member to advance the drive wheel and to operate the indicator assembly.
    • 提供了经过的时间指示器,其执行准确和可靠的时间测量。 该装置包括指示器组件,其具有驱动地连接到具有多个直立周边齿的驱动轮的多个编号的轮。 边缘擒纵机构采用在预定平面中移动并且仅作用在驱动轮的一侧的侧面作用的边缘构件。 驱动轮的周边齿与边缘构件配合,以使驱动轮以预定的间隔移动并驱动指示器组件的编号的轮。 由固态时基脉冲的电磁体和驱动电路使边缘构件振荡以推动驱动轮并操作指示器组件。