MEMS加速度传感器测试平台控制系统的研制

发布时间：2018-04-26 02:26

本文选题：静态加速度 + 自检测　；参考：《西南科技大学》2017年硕士论文

【摘要】：随着经济和社会的快速发展,高铁已慢慢融进了中国人民的日常生活当中,但伴随而来的安全问题急需得到彻底全面地解决。MEMS传感器技术特别适用于高铁安全方面的检测,加快对MEMS静态加速度传感器测试系统的研制对保障轨道交通安全意义重大。本文综合介绍了MEMS加速度传感器测试平台控制系统研制方面主要内容与现状,分析了MEMS静态加速度传感器测试系统实现机制,着重阐述并验证使用运动控制卡实现分度台精准角度控制的可行性方案,在完成硬件平台搭建后进行软件界面设计,以保障完成静态加速度的测试。用microsoft visual c++6.0编辑界面程序,设置驱动器、运动控制卡中参数,使用脉冲串加符号控制伺服电机的转速与转向,利用PC机、运动控制卡、伺服驱动器,伺服电机等硬件设计一种基于绝对位置的电机控制系统。摈弃传统仅使用接近开关导致回零误差大的缺陷,采用PCI-1245L运动控制卡和RS-422接口电缆相结合方式开发设计加速度测试控制平台以解决伺服系统断电又上电后不能精确实现原点回归的问题。通过硬件上的合理设计和软件上采用限幅平均滤波等方法削弱数据采集过程中可能出现的辐射和链路干扰问题,保障MEMS加速度测试系统的可靠性。从而解决传统静态加速度传感器测试测量精度低的问题,最终解决人机交互界面过程中的复杂性操作,实现伺服系统意外断电原点回归、伺服电机正反转、原点复位、精确分度基本电机控制功能、系统测试、数据显示、温箱控制等重要功能,最终研制一套MEMS加速度传感器测试平台控制系统,实现传感器多通道静态加速度测试。
[Abstract]:With the rapid development of economy and society, high-speed rail has been gradually integrated into the daily life of the Chinese people, but the accompanying safety problems urgently need to be thoroughly and comprehensively resolved. MEMS sensor technology is particularly suitable for high-speed rail safety detection. It is of great significance to accelerate the development of MEMS static acceleration sensor test system to ensure the safety of rail transit. In this paper, the main contents and status quo of the control system of MEMS acceleration sensor test platform are introduced, and the realization mechanism of MEMS static acceleration sensor test system is analyzed. The feasibility scheme of using motion control card to realize precise angle control of indexing platform is expounded and verified emphatically. After the hardware platform is built, the software interface is designed to ensure the completion of static acceleration test. The interface program is edited by microsoft visual c 6.0, the parameters in the motion control card are set up, the rotation speed and steering of the servo motor are controlled by pulse string plus symbol, and the PC, motion control card and servo driver are used. Servo motor and other hardware design a motor control system based on absolute position. Abandon the traditional use of proximity switches only resulting in the defect of large return error, The acceleration test control platform is developed by combining PCI-1245L motion control card and RS-422 interface cable to solve the problem that the servo system can not accurately realize the origin regression after power off and power on. The reasonable design of hardware and the use of amplitude limiting average filter in software can weaken the problems of radiation and link interference in the process of data acquisition and ensure the reliability of MEMS acceleration test system. In order to solve the problem of low measurement precision of traditional static acceleration sensor, and finally solve the complex operation in the process of man-machine interaction interface, realize the return of the original point of unexpected power failure of servo system, the positive and negative rotation of servo motor, the reset of origin point. The basic motor control function, system test, data display, temperature box control and other important functions are developed. Finally, a set of MEMS acceleration sensor test platform control system is developed to realize multi-channel static acceleration test of sensors.
【学位授予单位】：西南科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP212

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