基于PIC单片机控制的电容层析成像系统  

Ect System Based on Pic Microprocessor

作　　者：高彦丽[1] 刘百芬[1] 邵富群[2] 章勇高[1] 

机构地区：[1]华东交通大学电气与电子工程学院,江西南昌330013 [2]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《仪表技术与传感器》2003年第9期31-33,共3页Instrument Technique and Sensor

基　　金：国家自然科学基金资助项目(编号:50074016)

摘　　要：电容层析成像技术以其结构简单、响应速度快、非侵入、无辐射等优点成为检测科学领域里的研究热点之一。介绍了一种基于PIC16C74单片机控制的8极板电容层析成像系统,描述了它的硬件检测电路组成、工作原理并给出了图像重建计算机和单片机工作的软件设计流程。实验证明:模块化结构设计使得系统具有良好的性能,且充分考虑了信号远传、系统成本、灵活性、速度等问题,为ECT技术的工业应用奠定了基础。Electrical Capacitance Tomography(ECT)is a hot spot in the research field of measurement science and technology,because its sensor has the advantage of being non-intrusive,non-radiate,fast response,easy to implement and low in cost.An 8-electrode ECT system based on PIC microprocessor is introduced,and the hardware,software and the principle of which are described.The experiment shows that this sytem designed on modularization configuration have good characteristics,and the signal distant transfer,cost,running speed and the flexibility of which are considered.All of these make preparations for ECT industry application in the future.

关 键 词：电容层析成像系统 单片机 PICl6C74 图像重建 软件设计 模块化设计 ECT技术 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]