嵌入式智能球铰链设计及研制

发布时间：2018-05-23 13:25

本文选题：球铰链 + 霍尔传感器　；参考：《机械工程学报》2017年20期

【摘要】：精密球铰链在并联机构中应用广泛,但其在被动运动中,其回转方位及回转角无法自知。基于磁效应,提出一种霍尔传感器与永磁体组合的回转方位辨识及角度测量新方法。在球头上嵌入永磁体,在球窝上植入霍尔传感器阵列,当球头回转时,霍尔传感器阵列测量磁感应强度的变化,反解出角度信息。在完成理论建模、仿真计算和可行性试验的基础上,完成了嵌入式样机的研制。在实现信号冗余计算的基础上,优化了反解算法,基本实现了球铰链多维回转角度的实时测量。球铰链也从单纯的精密传动部件转变为集传动和感测为一体的综合智能部件。随研究的继续,其精度将有大幅提高,有望应用到精密工程中。
[Abstract]:Precision spherical hinge is widely used in parallel mechanism, but its rotation direction and rotation angle can not be known in passive motion. Based on the magnetic effect, a new method of azimuth identification and angle measurement based on the combination of Hall sensor and permanent magnet is proposed. The permanent magnet is embedded in the ball head and the Hall sensor array is implanted on the ball socket. When the ball head rotates, the Hall sensor array measures the change of magnetic induction intensity and inversely solves the angle information. On the basis of theoretical modeling, simulation and feasibility test, the embedded prototype is developed. Based on the calculation of signal redundancy, the inverse solution algorithm is optimized, and the real-time measurement of multi-dimensional rotation angle of spherical hinge is basically realized. The ball hinge has also changed from a simple precise transmission component to an integrated intelligent component that integrates transmission and sensing. As the research continues, its precision will be greatly improved, which is expected to be applied to precision engineering.
【作者单位】：合肥工业大学仪器科学与光电工程学院;北京信息科技大学仪器科学与光电工程学院;
【基金】：国家自然科学基金(51475133) 北京市“光电测试技术”重点实验室开放(GDKF2016001)资助项目
【分类号】：TH122;TP212

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