大学物理 ›› 2009, Vol. 28 ›› Issue (5): 21-21.

• 著者文摘 • 上一篇    下一篇

有限长密绕圆柱形螺线管自感系数的精确表达式

丁健   

  1. 长安大学理学院物理系,陕西西安710064
  • 出版日期:2009-05-20 发布日期:2009-05-20

The exact expression of self-inductance for a tightly wound cylindrical solenoid of finite length

  • Online:2009-05-20 Published:2009-05-20

摘要: 对于有限长密绕圆柱形螺线管,首先用贝塞尔函数展开法推导出自感系数的积分形式的表达式,然后用直接积分的方法得出两个级数形式的自感系数表达式,最后对这两个表达式作了简要的分析与比较.

关键词: 螺线管, 有限长, 自感系数, 精确表达式

Abstract: For a tightly wound cylindrical solenoid of finite length, the expression of self-inductance in the integral form is derived by means of the Bessel functance expansion. The two expressions of self-inductance in the series form are obtained by using the direct integration method. Some simple analysis and comparison on the two expressions are presented.

Key words: solenoid, finite length, self-inductance, exact expression

中图分类号: 

  • O441.3