| 利用激光衍射原理测细丝直径 |
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| 引用本文： | 李芳菊,耿森林.利用激光衍射原理测细丝直径[J].河南科学,2012,30(5):568-570. |
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| 作者姓名： | 李芳菊 耿森林 |
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| 作者单位： | 渭南师范学院物理与电气工程学院,陕西渭南,714000 |
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| 基金项目： | 陕西省教育厅项目，渭南师范学院科研培育项目 |
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| 摘 要： | 根据夫琅禾费衍射理论和巴比涅互补原理,推导出细丝直径的表达式,设计了用激光衍射法测细丝直径的实验,由测量的数据,计算出了三种粗细不同细丝的直径,通过与其他传统方法比较,对于直径越小的细丝,此方法具有测量精度高、非接触、无损伤的优点.
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| 关 键 词： | 夫琅禾费衍射 单缝衍射 激光衍射 巴俾涅原理 |
Measurement of Fine-wire Diameter by Laser Diffraction |
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| Li Fangju
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Geng Senlin.Measurement of Fine-wire Diameter by Laser Diffraction[J].Henan Science,2012,30(5):568-570. |
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| Authors: | Li Fangju Geng Senlin |
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| Institution: | (School of Physiscs and Electronic Engineering,Weinan Normal University,Weinan 714000,Shaanxi China) |
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| Abstract: | According to the theory of Fraunhofer diffraction and Babinet principle,the expression of filament diameter is derived and the experiment which can measure the fine-wire diameters with laser diffraction is designed.Based on measured data,the fine-wire diameters with three different thickness are calculated.The method,which was compared with other traditional methods,has the advantages of high precision,non-contact and non-harm for the fine-wires whose diameters were smaller. |
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| Keywords: | Fraunhofer diffraction single slit diffraction laser diffraction Babinet principle |
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