磁-重力耦合悬垂平衡的全向倾角传感器优化设计

打开文本图片集

关键词：倾角传感器；全向倾角测量；四球冠凹面副;磁-重力耦合

中图分类号：TH712

DOI：10.3969/j.issn.1004-132X.2026.03.005 开放科学（资源服务）标识码（OSID）：

Abstract： To address the issues of limited measurement directions and complex structures in existing magnetic-effct tilt sensors，a suspended，gravity-balanced omnidirectional inclinometer was proposed based on a magneto-gravitational coupling design. Finite element simulations were used to determine the optimized engineering parameters for the permanent magnet dimensions and the detection air gap.Under small perturbations，the natural restoring process was analyzed to evaluate the influences of ball material properties and contact surface geometry on the contact behavior，which guided the optimization of the spherical crown concave structures and ballmaterial selection. Calibration experiments were conducted to verify the accuracy of the simulation models. Through systematic characterization，mapping models were established between the X，Y -axis magnetic field signals and displacement，and between displacement and inclination angle. Additionally，an analytical model was constructed between the Z -axismagnetic field and the inclination angle. The combination of these models enabled simultaneous estimation of inclination angle （20 θ and azimuth angle φ . To fully exploit the response characteristics of each magnetic field component across different tilt angle ranges，a segmented tilt angle calculation strategy was proposed. Validation experiments show that within the measurement range of -20∘ to 20∘ ， the maximum tilt angle error under various azimuth angles does not exceed ±0.3∘ ：

Key words： tilt sensor;omnidirectional tilt measurement； four-spherical-crown concave pair; magnetic-gravitational coupling

0 引言

倾角传感器作为获取被测平面相对于水平位置倾斜度的关键检测工具，在现代工业和科技的快速发展中扮演着越来越重要的角色。（剩余15108字）