| 单个感应线圈在水下弹丸速度测量中的应用 |
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| 引用本文： | 狄长安,孔德仁,王昌明.单个感应线圈在水下弹丸速度测量中的应用[J].南京理工大学学报(自然科学版),2007,31(6):727-730. |
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| 作者姓名： | 狄长安 孔德仁 王昌明 |
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| 作者单位： | 南京理工大学,机械工程学院,江苏,南京210094 |
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| 摘 要： | 为解决单个感应线圈测速目前存在的精度较低的问题,该文在建立水下磁化杆形弹穿过线圈靶的感应信号模型的基础上,通过仿真计算,分析了杆形弹过靶时感应电动势的特点,提出了以特征半径代替线圈靶半径进行计算以及优化线圈匝数使感应线圈靶的工作带宽与感应电动势有效带宽相匹配的方法,使单靶测速精度提高至5%.
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| 关 键 词： | 感应线圈 速度测量 水下弹丸 有效带宽 感应线圈 水下弹丸 速度测量 应用 Velocity Measurement Coil Induction Single 精度提高 单靶测速 方法 匹配 有效带宽 工作带宽 线圈匝数 优化 仿真计算 特征半径 感应电动势 分析 |
| 文章编号： | 1005-9830（2007）06-0727-04 |
| 收稿时间： | 2007-01-26 |
| 修稿时间： | 2007-09-24 |
Application of Single Induction Coil in Velocity Measurement for Underwater Bullet |
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| DI Chang-an,KONG Deren,WANG Chang-ming.Application of Single Induction Coil in Velocity Measurement for Underwater Bullet[J].Journal of Nanjing University of Science and Technology(Nature Science),2007,31(6):727-730. |
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| Authors: | DI Chang-an KONG Deren WANG Chang-ming |
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| Abstract: | To solve the low precision of velocity measurement with single induction coil, a model is developed for inductive signal from underwater magnetic rod like bullet crossing induction coil target. By use of simulation calculation, the characteristics of waveform from rod like bullet crossing induction coil target are studied. Methods are presented to increase the precision of velocity measurement by 5%, in which bullet velocity is calculated by replacing radius of coil with characteristic radius and the circles of coils are adjusted to make working bandwidth of the induction coil match the effective bandwidth of the inductive electromotive force. |
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| Keywords: | induction coils velocity measurement underwater bullets effective bandwidth |
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