磁致伸缩换能器辐射板位移放大机构设计

Magnetostrictive Transducer Tadiating Plate Displacement Magnifying Mechanism Design

磁致伸缩换能器是一种将电磁能转换成机械能或声能的器件,具有分辨率和响应频率高、性能稳定、机械强度好等优点,在声学领域得到了广泛的应用。但由于其产生的位移小,不能很好地满足现代设备对换能器大功率、小体积、高声强声源的需求。针对这一问题,利用柔性铰链的无机械摩擦、无间隙、运动灵敏度高的特点,设计基于柔性铰链的磁致伸缩换能器辐射板位移放大机构,并运用有限元软件对微位移放大机构的整体放大倍数进行有限元分析。

Magnetastrictive transducer is a kind of device convert electromagnetic energy into mechanical energy or energy. It has been widely used in the field of acoustics, because of its higher resolution and freqnency response, stale pegrormance, better mechanical strength. But it can＇t content the demand of modern equipment for high-power, small volume, high intensity acoustic source transducer due to generated small displacement. For this, maks use of the characteristic of no mechanical friction, gapless and high motion sensitivity for flexure hinge, it designs a micro displacement amplification mdchanism and analyzes the magnification of mechanism by finite element software.