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    • 9. 发明授权
    • Electromechanical transducer and electrical device
    • 机电换能器和电气装置
    • US07554425B2
    • 2009-06-30
    • US10570435
    • 2004-08-23
    • Jozef Thomas Martinus Van BeekPeter Gerard Steeneken
    • Jozef Thomas Martinus Van BeekPeter Gerard Steeneken
    • H03H9/02H03H9/46H03H3/013
    • H03H9/2405H03H9/02448H03H9/2463H03H2009/02496H03L1/04
    • The electromechanical transducer (1) has a resonator element (20) and an actuator (30) for inducing an elastic deformation of the resonator element (20) dependent on the electrical input signal. For temperature stabilization, the electromechanical transducer (1) has a sensing element (40) for providing an electrical sensing signal has a function of a temperature of the resonator element (20), and a heating element (50) for heating the resonator element to reduce the temperature dependent frequency deviation to keep the resonance frequency equal to the nominal frequency at operating temperature. The heating element (50) is controlled by an electrical heating signal based on the electrical sensing signal. The resonator element may have the hating element or the sensing element; it may be part of a wheatstone bridge; it may consist of two longitudinally extendable parts (201, 202) extending in opposite directions, being attached in a support area (204) in a deformation free part (203).
    • 机电换能器(1)具有谐振元件(20)和致动器(30),用于根据电输入信号引起谐振元件(20)的弹性变形。 为了温度稳定,机电换能器(1)具有用于提供具有谐振元件(20)的温度的功能的电感测信号的感测元件(40)和用于将谐振元件加热到 降低温度相关的频率偏差,以保持谐振频率等于工作温度下的额定频率。 加热元件(50)由基于电感测信号的电加热信号控制。 谐振器元件可以具有憎恨元件或感测元件; 它可能是惠斯通电桥的一部分; 它可以包括沿相反方向延伸的两个纵向延伸的部分(201,202),它们连接在无变形部分(203)中的支撑区域(204)中。