仿生原型毫-微牛级二维力测试系统研制  

Design of bionic prototype milli-micro Newton level two-dimensional force test system

作　　者：李云鹏 王立新[1] 闫世兴 董世运[2] LI Yunpeng;WANG Lixin;YAN Shixing;DONG Shiyun(School of Mechanical Engineering,Hebei University of Science and Technology,Shijiazhuang,Hebei 050018,China;National Defense Key Laboratory for Remanufacturing Technology,Academy of Armored Force Engineer,Beijing 100072,China)

机构地区：[1]河北科技大学机械工程学院,河北石家庄050018 [2]陆军装甲兵学院装备再制造技术国防科技重点实验室,北京100072

出　　处：《河北科技大学学报》2020年第2期105-113,共9页Journal of Hebei University of Science and Technology

基　　金：国家自然科学基金(51205107);河北省高等学校青年拔尖人才资助项目(BJ2017011);河北省自然科学基金(E2019208306)。

摘　　要：为满足机械仿生学研究对测试仿生原型产生的毫-微牛级力的需要,构建了二维力测试系统。系统硬件部分主要包括自行研制的平行双簧片悬臂梁及其匹配的电涡流位移传感器、实现测试功能及测试样本简便更换的附属机构、测力传感器输出信号调理模块与能够完成A/D转换的数据采集卡,基于虚拟仪器技术LabVIEW编写了数据处理与界面显示程序。为检验系统的功能,进行了系统的运行调试并测试了仿生原型产生的摩擦力、法向力、刺穿阻力。结果表明,系统能够准确采集仿生原型的毫-微牛级力,并能在界面窗口实时、直观地显示,实现了毫-微牛级力的数据信息保存,测试精度可达50μN,量程可达800 mN。因此,所设计系统能够精确测试仿生原型产生的毫-微牛级二维力,为机械仿生学研究提供了所需的测力技术与方法。In mechanical bionics field,it is necessary to measure the bionic prototypes generated milli-micro force.To satisfy the test requirement,a milli-micro Newton two-dimensional force measuring system was designed.Hardware of the system mainly includes self-developed parallel double spring cantilevers and its matched eddy current displacement sensors,milli-micro force measurement platforms which can realize the easy installation of samples,transducer output signal conditioning module and data sampling card,and data processing and displaying program based on LabVIEW.To test the system function,the system operation debugging was implemented.The friction force,the normal force,and the piercing resistance force provided by the bionic prototypes were measured.The results confirm that the system can obtain these force values with milli-micro magnitude accurately,and display these force values in real time and intuitively in the interface window,as well as realize the storage of these force values in the form of force trajectory diagram and data group effectively.Accuracy and range of this milli-micro Newton two-dimensional force measuring system is respectively up to 50μN and 800 mN.Our designed system can accurately measure the milli-micro Newton two-dimensional force produced by bionic prototypes,and provide the technique and method of force measurement used in mechanical bionics.

关 键 词：传感器技术 机械仿生 仿生原型 毫-微牛级力 LABVIEW 

分 类 号：S433.2[农业科学—农业昆虫与害虫防治] TH823[农业科学—植物保护]