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微波通常是指频率范围从300兆赫到300千兆赫的无线电波.微波理论与技术已经历了四十多年的发展历史.早在本世纪三十年代,医学工作者就发现在高功率微波发生器旁长期工作的人员有神经衰弱症候群的存在,并注意到高强度微波辐射造成动物致死的效应.四十年代,由于雷达发射机日趋高功率化,为保护操纵人员,曾大规模地开展过定名为“雷达危害”的研究课题.将微波作为职业卫生学的一部分,并进行较系统的研究是开始于五十年代初期.美国宾夕法尼亚大学施万(Schwan)博士首先开展了这方面的研究.1953年,苏联在医学科学院内设立了专门的研究机构.随后,其他各工业国也陆续开展了类似的研究.六十年代以来,各种新颖精巧的微波设备似雨后春笋
Microwaves generally refer to radio waves in the frequency range from 300 MHz to 300 GHz. Microwave theory and technology have undergone more than 40 years of development. As early as the 1930s, medical workers found that high power microwaves occurred Long-term workforce has the presence of neurasthenic syndrome, noting the effects of high-intensity microwave radiation on animal lethality. In the 1940s, as radar transmitters became increasingly power-efficient, protective manipulators had been deployed on a large scale Named as “radar hazard.” Microwave as a part of occupational hygiene and more systematic research began in the early fifties.Phil Schwan (Ph.D.), University of Pennsylvania first carried out research in this area. The Soviet Union set up a special research institute in the Academy of Medical Sciences in 1953. Subsequently, other industrial countries also carried out similar studies one after another, since the 1960s, a variety of novel and sophisticated microwave equipment springing up