坐标系与坐标变换

文档编号:WLX018  字数:7303,页数:16

摘要   
本文档阐述了磁场是物质存在的基本形式之一，它存在于运动电荷周围空间。电场和磁场的描述都有赖于运动电荷的速度，而速度又和参考系有关，由此可知，电场和磁场的描述将随参考系的不同而不同。一个电荷相对于某一参考系静止时，在此参考系内观察，另一运动电荷只受到这电荷的静电场的作用，并不受磁力。但在另一参考系内观察，这电荷可能是运动的，另一运动电荷除受到这电荷的电场力外，同时还受到磁场力的作用，为了分析磁场力产生的原因，我们通过坐标变换的方法，先求出场源电荷在其中静止的参考系S′中检验电荷所受的静电场力；然后利用相对论力的变换公式将此力变换回S系中，求出运动电荷对运动电荷的作用力，并由此总结出磁场力的本质。

关键词：电场  磁场  参考系  狭义相对论  坐标变换 

Abstract
This article proposed: The magnetic field is one of physical existence fundamental modes, it exists around the magnet around the space, the moving charge around the space as well as the electric current the space. The electric field and the magnetic field description depends on the electric charge speed, but speed with reference system related, thus it may be known, electric field and magnetic field description along with reference system's difference and difference. When an electric charge is opposite in some reference system static, observes in this reference system, another moving charge only receives this electric charge the electrostatic field function, not magnetic force. But observes in another reference system, this electric charge possibly is the movement, another moving charge besides receives this electric charge the electrical field intensity, meanwhile receives the magnetic field strength the function, to analyze the reason which the magnetic field strength produces, through coordinate transformation's way, strives for to enter the stage the first source electric charge in static reference system S ' the test charge receives electrostatic field strength; then transforms using the theory of relativity strength's transformation formula this strength S is, extracts the moving charge to the moving charge action, and summarizes the magnetic field strength essence from this.

Keywords：electric field  magnetic field  reference system  special relativity       conversion of coordinate

目  录
中文摘要 i
英文摘要 ii
第一章     绪论  1
1.1  研究动机与目的 1
1.2  研究背景 1
1.3  研究方法与系统描述 1
1.4  文档內容概述 1
    坐标变换下的相对论力学规律 3
      2.1  伽利略变换 3
      2.2  经典力学的困难 4
      2.3  坐标变换下的相对论力学变换式 5
第三章     坐标变换下洛仑兹力的探讨 6
第四章     结论 11
参考文献 12
致谢 13

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