基于融合模型的高精度倾角测量系统设计

摘要

针对现有倾角测量在宽范围内误差大的问题，提出了一种基于融合模型的高精度倾角测量系统设计方案，首先通过测量误差机理分析建立双MEMS加速度计的融合模型，再拟定标定方案确定模型相关参数，最后对硬、软件进行设计，可实现0~360°内角度的高精度测量。经高精度转台对比实验验证，该设计系统具有功耗低、宽测量范围内精度高等优点，能够实现在宽范围（0~360°）的高精度测量，且测量精度达到±0.05°。%This article is intended for a new solution to deal with problems that is low accuracy of wide measuring range. It’s proposed a high precise angle measurement system based on fusion model. Firstly,we created the fusion model of MEMS accelerometer mechanism by analyzing measurement error,and prepared the calibration program to determine the model parameters,finally,we completed hardware and software design,which can reach 0~360° angle precision measurements. By comparative experiments verification,the designs of the system had advantages in low power consumption,high precision and a wide measurement range,etc. It achieved a wide range of high-precision stable measurement and accuracy up to ±0.05°.