| 引用本文: | 张伟,荣伟彬,王乐锋,路遥,孙立宁.光纤熔融拉锥中拉力控制方法与电磁力仿真[J].哈尔滨工业大学学报,2015,47(7):62.DOI:10.11918/j.issn.0367-6234.2015.07.010 |
| ZHANG Wei,RONG Weibin,WANG Lefeng,LU Yao,SUN Lining.Method of controlling drawing force in the fused biconical tapering process and simulation of electro-magnetic force[J].Journal of Harbin Institute of Technology,2015,47(7):62.DOI:10.11918/j.issn.0367-6234.2015.07.010 |
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| 摘要: |
| 针对保偏光纤耦合器熔融拉锥制造过程中拉力控制问题,提出一种新的计算机在线拉力控制方法. 拉力控制系统由计算机、拉伸机构、圆光栅及控制电路组成,通过检测光纤支架的旋转角度、改变线圈中的电流,控制永磁铁与线圈间的电磁力,实现对拉伸力的实时控制. 分析电磁力和拉力的关系,建立永磁铁和线圈的三维有限元模型,确定永磁铁的运动轨迹,并对通电线圈的磁场分布和电磁力进行仿真,得到线圈中的电流、支架旋转角度和拉力的关系式. 仿真结果表明拉力控制良好,控制误差约为1.03%. |
| 关键词: 保偏光纤 熔融拉锥 电磁力 力控制 有限元仿真 |
| DOI：10.11918/j.issn.0367-6234.2015.07.010 |
| 分类号:TU398 |
| 基金项目:机器人技术与系统国家重点实验室自主研究课题(SKLRS201301A01);长江学者和创新团队发展计划(IRT0915)． |
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| Method of controlling drawing force in the fused biconical tapering process and simulation of electro-magnetic force |
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ZHANG Wei, RONG Weibin, WANG Lefeng, LU Yao, SUN Lining
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(State Key Laboratory of Robotics and System(Harbin Institute of Technology), 150080 Harbin, China)
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| Abstract: |
| According to the problem of drawing force control in the fused biconical tapering process of polarization maintaining fiber (PMF) coupler, an online computer control method of drawing force is presented, which includes the computer, drawing mechanism, rotary position encoders and a control circuit. By detecting the rotation angle of fiber clamp, the electro-magnetic force can be controlled through changing the coil current, and the real-time control of drawing force is realized. Firstly, the relationship between the electromagnetic force and drawing force is analyzed, a 3D finite element model of the permanent magnet and the coil is established, and a trajectory equation describing the permanent magnet is obtained. Then, by simulation of the magnetic field and the electro-magnetic force around the coil, the relationship among the coil current, the rotation angle of fiber clamp and the drawing force is determined. At last, by simulation, the drawing force is controlled within an error of 1.03%. |
| Key words: polarization maintaining fiber fused biconical tapering electro-magnetic force force control finite element simulation |
