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应用科学学报 ›› 2005, Vol. 23 ›› Issue (4): 438-440.

• 研究简报 • 上一篇    

热轧车轮测量中的热光学误差分析

杨永跃, 邓善熙, 洪占勇   

  1. 合肥工业大学仪器仪表学院, 安徽合肥 230009
  • 收稿日期:2004-04-29 修回日期:2004-07-01 出版日期:2005-07-31 发布日期:2005-07-31
  • 作者简介:杨永跃(1964-),男,安徽定远人,副教授,博士生,E-mail:jamo.yang@163.com;邓善熙(1940-),男,广东南海人,教授,博导,E-mail:sxdeng3@hotmail.com
  • 基金资助:
    安徽省"十五"科技攻关重点项目(01022010)

Analysis of Thermal Optic Errors in Hot Rolling Train Wheel Measurements

YANG Yong-yue, DENG Shan-xi, HONG Zhan-yong   

  1. School of Instrumentation, Hefei University of Technology, Hefei 230009, China
  • Received:2004-04-29 Revised:2004-07-01 Online:2005-07-31 Published:2005-07-31

PDF

78

被引次数

4

摘要： 测量热轧火车轮时,由于周围空气温度场的不均匀,导致空气折射率的不均匀分布,使得光线发生弯曲,从而给测量带来误差.该文利用有限元方法分析热轧车轮周围空气温度场,计算得到相应测位空气折射率的线形分布规律.根据测量光线的弯曲偏移量和偏移方向,合理安排测量工位,避免了光线弯曲对测量结果带来的影响.

关键词: 折射率, 有限元, 温度场, 热光学误差

Abstract: In measuring a hot rolling train wheel, optic rays are curved due to the non-uniform distribution of surrounding air temperature, leading to significant errors.Air temperature distribution is analyzed with a finite element method.Linear distribution of refractive index is calculated for certain measurement positions. Reasonable positions are chosen according to the amount and direction of curly light rays so that influence of the ray curvature is avoid.

Key words: temperature distribution, thermal optic error, air refractive index, finite element

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