电磁场数值计算(基本原理)讲解

2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
14
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
10
电磁场数源自文库计算
任课教师：王泽忠
Heinrich Rudolf Hertz (1847-1894)
赫兹
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
11
电磁场数值计算
任课教师：王泽忠
Heinrich Rudolf Hertz (1847-1894) was the first to broadcast and receive radio waves. Maxwell's theory had been based on unusual mechanical ideas about the ether and had not been universally accepted. In 1884, Hertz rederived Maxwell's equations by a new method, casting them in modern form. Then, between 1885 and 1889, as a professor of physics at Karlsruhe Polytechnic, he produced electromagnetic waves in the laboratory and measured their wavelength and velocity. He showed that the nature of their reflection and refraction was the same as those of light, confirming that light waves are electromagnetic radiation obeying the Maxwell equations.
电磁场数值计算
任课教师：王泽忠
电磁场数值计算
王泽忠
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
1
电磁理论
电磁场数值计算
电磁学
任课教师：王泽忠
电磁场
电动力学
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
2
电磁场数值计算
任课教师：王泽忠
Charles-Augustin de Coulomb
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
8
电磁场数值计算
任课教师：王泽忠
James Clerk Maxwell (1831-1879) 麦克斯韦
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
9
电磁场数值计算
任课教师：王泽忠
James Clerk Maxwell (1831-1879) came from a middle class Edinburgh family. He is ranked with Newton and Einstein for the fundamental nature of his many contributions to physics. Most importantly, he originated the concept of electromagnetic radiation and his field equations (1873) led to Einstein's special theory of relativity, It is ironic that when in 1860 the University of Aberdeen was formed by a merger between King's College and Marischal College where he held a post, Maxwell was "redundant". He applied at the University of Edinburgh, but was turned down in favor of another. He found it necessary to move to London's King's College. In 1871, Maxwell was appointed the first Cavendish professor of experimental physics at Cambridge. Maxwell died at fortynine after a short illness. He was buried in Scotland in the family plot; there were no public honors at his passing.
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
6
电磁场数值计算
任课教师：王泽忠
Michael Faraday (1791-1867) 法拉第
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
7
电磁场数值计算
任课教师：王泽忠
Michael Faraday (1791-1867) was born in a village near London. His father was a migrant blacksmith often ill and incapable of providing for his four children. Faraday's great opportunity came when he was offered a ticket to attend chemical lectures by Sir Humphrey Davy in London. Faraday went and sent a bound copy of his notes to Davy asking for employment. Faraday began as Davy's laboratory assistant. It has been said that Faraday was Davy's greatest discovery. Faraday became the greatest experimentalist in electricity and magnetism of the 19th century. He produced an apparatus that was the first electric motor and in 1831 he succeeded in showing that a magnet could induce electricity. Queen Victoria rewarded his lifetime of achievement by granting him the use of a house at Hampton Court and a knighthood. Faraday accepted the cottage but rejected the knighthood.
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
12
电磁场数值计算
任课教师：王泽忠
Albert Einstein (1879-1955)
爱因斯坦
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
13
电磁场数值计算
任课教师：王泽忠
Albert Einstein (1879-1955), one of the great geniuses of physics, grew up in Munich where his father and his uncle had a small electrical plant and engineering works. Einstein's special theory of relativity, first printed in 1905 with the title "On the Electrodynamics of Moving Bodies" had its beginnings in an essay Einstein wrote at age sixteen. The special theory is often regarded as the capstone of classical electrodynamic theory.
(1736-1806)
库仑
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
3
电磁场数值计算
任课教师：王泽忠
Charles-Augustin de Coulomb (1736-1806), a military civil engineer, retired from the French army because of ill health after years in the West Indies. Forced from Paris by the disturbances of the revolution, he began working at his family estate and discovered that the torsion characteristics of long fibers made them ideal for the sensitive measurement of magnetic and electric forces. He was familiar with Newton's inverse-square law and in the period 1785-1791 he succeeded in showing that electrostatic forces obey the same rule.
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
4
电磁场数值计算
任课教师：王泽忠
André-Marie Ampère (1775-1836)
安培
2019年6月1日
华北电力大学（北京）－电力工程系－高电压与电磁兼容研究所
5
电磁场数值计算
任课教师：王泽忠
André-Marie Ampère (1775-1836) was a child prodigy whose early life was marred by tragedy: Ampère's father was beheaded in his presence during the Revolution and, later, his wife died four years after their marriage. As a scientist, Ampère had flashes of inspiration which he would pursue to their conclusion. When he learned of Ørsted's discovery in 1820 that a magnetic needle is deflected by a varying nearby current, he prepared within a week the first of several papers on the theory of this phenomenon, formulating the law of electromagnetism (Ampère's law) that describes mathematically the magnetic force between two circuits.