摘要
针对传统倾角测量装置手动补偿时费时费力的问题,设计了一款具有自补偿功能的数字式倾角测量装置。首先采用Atmega128单片机驱动步进电机,带动倾角传感器SCA61T旋转180°和一个固定的角度执行自补偿功能,然后进行正常的角度测量。设计了实时中值和移位均值相结合的滤波算法,有效减小了外界环境和噪声的干扰。利用分段线性化标定方法对传感器进行角度标定。测试结果表明:装置的测量范围为±30°,测量精度优于0.02°。
To solve the problem of time and energy waste in manual compensation of the traditional obliquity measuring device, a high-precision digital obliquity measuring device with self-compensation function was developed. Using Atmega128 micro-controller and stepping motor drive, the sensor SCA61T turns a fixed angle to achieve self-compensation function, then transferring to the normal measurement angle. By real-time mid-value and shift mean filtering, the noise interferences are effectively eliminated. The calibration of sensor＇s angle isaehieved via piecewise linear calibration method. The result shows that measurement range of this device is± 30 °, with measurement accuracy better than 0.02 °.
出处
《北京信息科技大学学报（自然科学版）》
2013年第5期28-31,共4页
Journal of Beijing Information Science and Technology University
基金
国家自然科学基金资助项目(61271047)
