第20卷第1期 2012年1月
文章编号1004-924X(2012)01-0072-08
光学精密工程
Optics and Precision Engineering
Vol. 20No.1
Jan.2012
面向光纤熔融拉伸的电磁力施加装置设计与实验
荣伟彬，关楠楠*，王乐锋，孙立宁
（哈尔滨工业大学机器人技术与系统国家重点实验室，黑龙江哈尔滨150080）
摘要：设计了相应的电磁力施加装置以实现对超细径光纤熔融拉伸力的精确控制。采用有限元法分析不同线圈参数下电磁线圈与永磁铁之间电磁力的大小，获得电磁力与线圈各参数间的数学关系式。以拉伸系统性能要求及线圈骨架的外形尺寸为限制条件建立约束方程及目标函数进行优化求解，得到最优参数。在依据优化参数制作电磁线圈的基础上设计了电磁力控制电路，通过调节线圈电流精确控制电磁力。最后，进行电磁力施加装置性能实验。实验结果表明：光纤拉伸力的范围达到26.073mN；光纤拉伸力的分辨率达到7.473μN，满足超细径光纤熔融拉伸对拉伸力范围及分辨率的要求。
关键调：超细径光纤；熔融拉伸；电磁力施加装置；微力测量
中图分类号：TN253
文献标识码：A
doi:10.3788/OPE.20122001.0072
Design and experiment of electromagnetic force
devicefor opticalfiber fusionstretching
RONG Wei-bin,GUAN Nan-nan',WANG Le-feng,SUN Li-ning
(StateKey Laboratory of Robotics and System,Harbin Institute of Technology,
Harbin150080，China)
Correspondingauthor，E-mail:moyunjinchignn@sina.com
Abstract: An electromagnetic force device is designed to realize the precise force control in the process of fusion stretching of ultra-thin fibers. First, the electromagnetic force with different coil parameters is calculated based on finite element method, and the relationship between electromagnetic force and coil parameters is derived. With the demand of stretching system performance and the dimension re strictions of the coil frame, constraint equations and objective functions are established to optimize the solution to machine the electromagnetic coil. Then the control circuit for electromagnetic force is de-signed to regulate the current in the coil and achieve the fine adjustment of electromagnetic force. Fi-nally, experiments of electromagnetic force device are performed, The results indicate that the range of stretching force for the optical fibers can achieve 26. 073 mN and the measuring resolution is 7. 473 μN. It satisfies the demand of the fusion stretching of ultra-thin fibers.
Key words: ultra-thin fiber, fusion stretching, electromagnetic force device, microforce measurement
收稿日期：2011-08-15；修订日期：2011-09-28.
基金项目：国家杰出青年基金资助项目（No，50725518)；国家863高技术研究发展计划资助项目（No.
2007AA04Z343，2009AA043103)；新世纪优秀人才支持计划资助项目（No.NCET-08-0170)；长江学者和创新团队发展计划资助项目（No，IRT0915)