三轴加速度传感器设计.docx

中北大学课程设计说明书2013/2014学年第2学期??学 院：专 业：学 生 姓 名：学 号：课程设计题目：三轴加速度传感器设计起 迄 日 期:课程设计地点:指 导 教 师: 专 业 负 责 人：???下达任务书日期: 2014年6 月13 日目录1、课程设计目的············································································12、课程设计内容和要求··································································12、1设计要求············································································12.2、设计要求···········································································13、设计方案及实现情况··································································13.1、设计思路···········································································13.2、工作原理及框图·································································13.3、主要电路模块的使用··························································23.4、实物结果图········································································64、课程设计总结·············································································75、参考文献···················································································76、附录···························································································8附录1原理图···········································································8附录2PCB版图········································································9附录3C语言代码···································································101、课程设计目的综合应用模电、数电、微机原理、单片机原理、传感器原理及应用和专业知识，通过理论与实践相结合，掌握所学知识的综合应用方法，培养和提高解决本专业实际工程问题的能力。2、课程设计内容和要求2、1设计要求：1. 文献检索和综述；2. 掌握三轴加速度传感器的工作原理；3. 画出传感器装配结构图；用protel绘制原理图；4. 所写说明书格式规范，内容完整；5. 参加答辩。2.2、设计内容：1. 设计传感器整体结构；4. 以ADXL345三轴加速度计为模型，设计测量电路，给出电路元件参数；5. 基于单片机的采集与显示电路方案设计；6. 用ADXL345搭建测试系统，仿真实验处理结果。3、设计方案及实现情况3.1、设计思路根据题目要求，首先要对传感器整体结构进行设计，以满足ADXL345三轴加速度计运行的环境；其次，选择合适的通信方式使单片机与传感器能正常通信传输数据；最后，对单片机外围结构进行设计，使单片机能正常工作，编写合适的C语言程序，使传感器传输的数据能够在外围器件上显示出来。3.2、工作原理及框图（1）工作原理 ADXL345三轴加速度计能够将三个方向的加速度g储存在其内部寄存其中，所以，通过适当控制指令以及与单片机通信，就可将其传输到单片机中，然后对其进行编译。显示模块这里使用的是LCD1602,编译后的数据传送到与LCD1602相连的I/O口，通过读写指令就可显示出数据。每当ADXL345三轴加速度计记录数据发生变化时