"Electromagnetic compatibility is the study of limited space, time, spectrum resource conditions, a variety of electrical equipment (broadly defined also includes organisms) can **** survival, and does not cause degradation of a science."
The discipline of electromagnetic compatibility contains a wide range of content, practicality is very strong. Almost all of the modern industry, including electric power, communications, transportation, aerospace, military, computers, medical and so on must solve the electromagnetic compatibility problem. Electromagnetic compatibility involves the theoretical basis of mathematics, electromagnetic field theory, antenna and wave propagation, circuit principles, signal analysis, communication theory, materials science, biomedical and so on. So it can be said that electromagnetic compatibility is a cutting-edge comprehensive discipline, and at the same time closely linked with industrial production, and quality control. It can be said that the current human enjoyment of high-tech to bring people a variety of benefits, is inseparable from the human decades in the electromagnetic compatibility of the efforts undertaken. At the same time, due to the more and more extensive application of electrical energy, many electromagnetic interference problems are still confusing, constraints, people's production and life, electromagnetic compatibility will become more and more complex, the importance of electromagnetic compatibility is more and more people's attention. Electromagnetic compatibility certification of industrial products is to optimize the electromagnetic environment, improve the electromagnetic compatibility of the necessary means. (Zhang Linchang)
Special attention should be paid to a large number of domestic and foreign experience shows that the earlier the attention to solving the electromagnetic compatibility in the development process of the product, the more you can save manpower and material resources.
Based on years of electromagnetic compatibility technology and development, for solving the relationship between electromagnetic compatibility and product development, production process, in the international community to get the schematic diagram.
The horizontal axis of the diagram is the various stages of the production process of the product; the vertical axis is the cost of solving the EMC problem of the product, i.e., the human and material resources required. The figure can be seen, if the product development stage to solve the electromagnetic compatibility problems required for the cost of 1; such as to the type development stage, may require 10; to the mass production in the solution to the need for the cost may be as high as 100; because this time the molds and processes need to be changed; and if the batch of deep production has not yet been found or has not yet been solved the electromagnetic compatibility problems, then to the field installation and commissioning stage in the solution, the cost will be likely to be as high as Thousands of times. This shows that for a product or a system, it is very necessary to solve the EMC problem as early as possible.