小信号医用传感器的设计及应用  

The Design and Application of Small Signal Clinic Sensor

作　　者：赵均海[1] 孙家驹[1] 

机构地区：[1]长安大学建筑工程学院,西安710061

出　　处：《生物医学工程学杂志》2004年第6期1003-1005,共3页Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目 (3 9970 193 )

摘　　要：针对骨力 电电位的测量需要 ,分析了各类传感器的性能及其应用特点 ,选择了合适的弯曲型结构形式 ,制作了用于小信号下 ,骨试件力 电电位测量用的应变传感器。该传感器体积小 ,线性范围大 ,安装方便 ,且具有较高的灵敏度。应用该传感器对股骨、牙骨等试件进行了实验 ,得出了骨试件的应变 电位曲线 ,为临床应用提供了有用的参考资料。The performance and the characteristics of various senso rs are analy zed to meet the requirement of measuring the bone force-electromechanical poten t ials. The strain sensor that is suitable small signal and bone force-electromec h anical potential measure is developed and the curved structural form of the stra in sensor is chosen. The strain sensor has the advantage of small volume, large linear range, convenient installation and high sensitivity. The relationship between the strain and force-electromechanical potential of bone specimen is d etermined in the e xperiment on the bone of femur and bone of teeth using this type of sensor which provides the valuable data for clinical use.

关 键 词：小信号 医用传感器 设计 临床应用 骨试件 

分 类 号：TH789[机械工程—仪器科学与技术]