基于LabView的磁感应方式阻抗测量系统虚拟仪器接口的实现  

Realization of virtual instrument interface in measurement of bio-impedance in a conductive way based on LabView

作　　者：王聪[1] 董秀珍[1] 秦明新[1] 

机构地区：[1]第四军医大学生物医学工程系医学电子工程教研室,陕西西安710033

出　　处：《第四军医大学学报》2004年第20期1905-1907,共3页Journal of the Fourth Military Medical University

基　　金：国家自然科学基金资助项目 (50 3370 2 0 )

摘　　要：目的 :实现用于磁感应方式阻抗测量系统中的软硬件的接口 ,为进一步的测量实验打下良好的基础 .方法 :采用LabView对数据采集卡进行编程 ,控制试验数据的采集、数据的预处理以及系统的测量模式 .结果 :在实现的虚拟仪器接口基础上 ,进行了单线圈的电导率与输出相移的关系试验 ,结果与理论分析一致 .结论 :基于LabView的虚拟仪器接口适用于磁感应方式阻抗测量系统 ,可以成功地进行测量试验和初步的成像实验 .AIM: To realize the interface of the hardware and software of an inductive impedance measuring system so as to lay a foundation for future measuring experiments. METHODS: The DAQ card was programmed with LabView to control the sampling, the pretreatment of the data and the measuring models. RESULTS: Based on the virtual instrument interface, a single coil measurement experiment of the relationship between conductivity and phase shift was conducted and the result corresponded well with the theoretical analysis. CONCLUSION: The virtual instrument interface based on LabView is suitable for the inductive impedance measuring system and it can be used to conduct measuring experiments and preliminary imaging experiments.

关 键 词：电阻抗成像 磁感应断层成像 电阻抗 虚拟仪器 

分 类 号：R318.3[医药卫生—生物医学工程]