MEMS惯性传感器自动批量测试标定系统的研究

发布时间：2018-02-04 03:08

本文关键词： MEMS惯性传感器数据采集以太网通信数据存储与处理自动批量　出处：《南京理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：MEMS惯性传感器已经广泛应用于电子玩具、智能机械、手机、医疗器械、汽车电子、导航、姿态测量、智能弹药等民用及军用领域。但MEMS惯性传感器的测试标定依然以手动、单件为主,测试标定效率低,时间长,易出错。论文以改善传统测试标定方法为目的,设计了一套MEMS惯性传感器自动批量测试标定系统。根据系统所需功能及性能指标,设计了系统的总体结构。系统主要包括下位机、上位机和三轴转台,下位机又包括多通道数据采集卡、以太网交换机和数据存储与处理模块。论文详细阐述了下位机的硬件设计和软件设计,并介绍了上位机软件的设计。在下位机硬件设计方面,论文依次讨论了 MEMS惯性传感器为模拟信号输出、采用SPI输出和采用串口输出这三种情况下的数据采集电路的设计、以太网数据传输电路的设计、SD卡备份存储电路和电源电路的设计,以及数据存储与处理模块的设计。在下位机软件设计方面,介绍了三种多通道数据采集卡的数据采集程序设计、以太网通信程序设计、SD卡存储程序设计以及数据存储与处理模块的程序设计。在上位机软件方面,主要介绍了上位机软件开发环境、软件流程以及主要功能模块的实现。设计完成的系统可同时对64个MEMS加速度计,或32个MEMS陀螺,或8个以上MIMU进行测试标定,并具有可选择实验项目、自动控制传感器通断电、自动控制三轴转台、选择采样率等功能。在论文最后,给出了系统主要功能模块的测试结果,对MEMS惯性传感器进行测试标定实验的过程,以及完成的MEMS加速度计静态零偏和静态多位置测试、MEMS陀螺静态零偏和速率实验和MIMU标定实验的结果。测试标定结果表明,系统可实现对多个MEMS惯性传感器进行自动化的测试标定,相比于传统的单个、手动测试标定,效率得到了很大的提高,且减少了人力的投入。
[Abstract]:MEMS inertial sensors have been widely used in electronic toys, smart machinery, mobile phones, medical devices, automotive electronics, navigation, attitude measurement. Intelligent ammunition and other civil and military fields, but the MEMS inertial sensor test calibration is still manual, single-piece, low efficiency test calibration, long time. It is easy to make mistakes. In order to improve the traditional testing and calibration method, a set of MEMS inertial sensor automatic batch test calibration system is designed. According to the required function and performance index of the system. The overall structure of the system is designed. The system mainly includes the lower computer, the upper computer and the three-axis turntable, and the lower computer includes the multi-channel data acquisition card. Ethernet switch and data storage and processing module. This paper describes the hardware design and software design of the lower computer in detail, and introduces the software design of the upper computer, as well as the hardware design of the lower computer. The paper discusses the data acquisition circuit design of MEMS inertial sensor for analog signal output, SPI output and serial port output, Ethernet data transmission circuit design in turn. The design of SD card backup storage circuit and power supply circuit, as well as the design of data storage and processing module. In the software design of the lower computer, the data acquisition program design of three kinds of multi-channel data acquisition card is introduced. Ethernet communication program design SD card storage program design and data storage and processing module program design. In the host computer software, mainly introduces the host computer software development environment. The software flow and the realization of the main function modules. The system can test and calibrate 64 MEMS accelerometers, 32 MEMS gyroscopes, or more than 8 MIMU at the same time. It has the functions of selecting experimental items, automatically controlling the power off of the sensor, automatically controlling the three-axis turntable and selecting the sampling rate. At the end of the paper, the test results of the main function modules of the system are given. The process of testing and calibrating the MEMS inertial sensor and the static zero bias and static multi-position test of the MEMS accelerometer are carried out. The results of MEMS gyroscope static zero-bias and rate experiments and MIMU calibration experiments show that the system can automatically calibrate multiple MEMS inertial sensors. Compared with the traditional single test calibration, the efficiency of manual testing and calibration is greatly improved, and the input of manpower is reduced.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TP212

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