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    • 64. 发明授权
    • Acceleration sensing device
    • 加速度传感装置
    • US08225662B2
    • 2012-07-24
    • US12416508
    • 2009-04-01
    • Jun Watanabe
    • Jun Watanabe
    • G01P3/44
    • G01P15/097
    • An acceleration sensing device includes: an outer frame; a first drive arm having both ends supported by sides of the outer frame through respective base parts, the sides opposing each other; a second drive arm extending from one of the base parts of at least one of the sides toward the other side; and a sensing arm that is disposed midway between the first drive arm and the second drive arm and extends form the one base part of the one side toward the other side, the sensing arm having an electrode in order to extract electric charge generated in the sensing arm. In the device, the first drive arm and the second drive arm have excitation electrodes for a flexural vibration and form a tuning fork type resonator, and center positions in thicknesses of sections that are located in the base parts and on an extension line of the first drive arm differ from a center position in a thickness of the first drive arm.
    • 一种加速度感测装置,包括:外框; 第一驱动臂,其两端通过相应的基部支撑在外框架的侧面上,所述侧面彼此相对; 第二驱动臂,其从至少一个侧面中的一个基部延伸到另一侧; 以及感测臂,其设置在第一驱动臂和第二驱动臂之间的中间并且从一侧的一个基部朝向另一侧延伸,感测臂具有电极,以便提取在感测中产生的电荷 臂。 在该装置中,第一驱动臂和第二驱动臂具有用于弯曲振动的激励电极并形成音叉型谐振器,并且具有位于基座部分和第一驱动臂的延伸线上的部分的厚度的中心位置 驱动臂与第一驱动臂的厚度的中心位置不同。