基于磁阻传感器的消化道诊查胶囊的位置检测  

Capsule location detection based on magnetoresistive sensor in GI

作　　者：何文辉[1] 颜国正[1] 郭旭东[1] 

机构地区：[1]上海交通大学电信学院820研究所,上海200240

出　　处：《仪器仪表学报》2006年第10期1187-1190,共4页Chinese Journal of Scientific Instrument

基　　金：国家863计划基金(2004AA404013);国家自然科学基金(30570485)资助项目

摘　　要：本文介绍了HMC1023磁阻传感器的原理及其特点,并设计了它的标定方法。此外,本文研究了这种磁阻传感器在人体消化道无创诊查系统中对胶囊定位的应用。定位时将传感器固定在胶囊内,通过体外线圈激磁,利用相关的电磁场理论,解算出胶囊的位置坐标。由实验来看,这种定位方法简单可靠,随着研究的深入,有可能得到很高的定位精度,并进入实用阶段。The principle and characteristic of HMC1023 magnetoresistive sensor is introduced. The calibration method of the sensor is designed. The application of the sensor in localization of the noninvasive monitoring capsule in GI （gastrointestinal tract） is studied. For capsule localization, the sensor is fixed inside the capsule, and three coils for stimulating magnetic field are fixed outside the body, so the capsule＇s coordinate value can be calculated from magnetic theory. Experiment indicates that the proposed method is simple and reliable. The method will probably be applied in practice with continuous researching. However, the magnetoresistive sensor must play an important role in the localization system.

关 键 词：磁阻传感器 消化道 胶囊 定位 

分 类 号：TP212.13[自动化与计算机技术—检测技术与自动化装置]