论文部分内容阅读
汽车点火系统产生的频率很宽的电磁波(20～1000MHz)对安装在汽车上及其周围数百米内的无线电通讯设备、中短波接收机及广播电视造成严重干扰。随着广播电视及通讯事业的迅速发展,点火系统产生的电磁波干扰已成为当今汽车的三大公害之—。工业发达国家早在70年代就已制定有关抑制干扰的标准与法规,我国也已着手进行这方面的研究工作,并相应制订了有关标准与法规。电阻型火花塞已成为当今火花塞发展的新潮流,国外已普通采用不同热值,不同型式尺寸的系
The wide frequency electromagnetic waves (20 ~ 1000MHz) generated by the ignition system of a car seriously interfere with the radio communication equipment, medium and short wave receivers and radio and television installed within a few hundred meters on and around the automobile. With the rapid development of radio, television and telecommunications, the electromagnetic interference generated by the ignition system has become the three major public hazard of the automobile today. Industrialized countries as early as the 1970s have formulated standards and regulations on interference suppression, and our country has also started to carry out research work in this respect, and correspondingly formulated relevant standards and laws and regulations. Resistive spark plugs have become the new trend of the development of today’s spark plug, foreign countries have been using different calorific value, different types of size of the Department