基于TLE5012B的多圈绝对角度传感器设计

多圈绝对角度传感器是机器人、汽车电子核心部件之一.TLE5012B角度传感器基于集成巨磁阻(iGMR)技术,可检测封装磁场表面360°的变化,实现角度的非接触式测量.提出了三齿轮机械结构与TLE5012B角度传感器相结合的分段函数算法,实现对转轴旋转位置高精度、大量程的非接触式检测,完成角度传感器检测量程与检测精度的解耦.实验证明:利用该机械结构的分段函数算法所设计的绝对角度传感器可以实现检测量程可调,检测精度达到0.5°.

Design of multi-circle absolute angular sensor based on TLE5012B

Multi-circle absolute angular sensor is one of the electronic core parts of robots and automobiles. TLE5012B angular sensor,based on integrated giant magneto-resistive (iGMR)technology,can detect 360° variation of encapsulated magnetic field surface and accordingly realize non-contact angle measurement. A piecewise function algorithm integrating three-gear mechanical structure and TLE5012B angular sensor is proposed to realize the high-precision and large-range non-contact measurement of the rotation position of the rotating shaft, accordingly decouple the detection range and the detection precision of the angular sensor. The experiment proves the proposed algorithm,based on piecewise function algorithm integrating three-gear mechanical structure,can realize adjustable measurement range,with the detection precision achieve 0. 5°.