次声是生产环境中仍未被充分研究的不良物理因素之一。随着近代工业和交通运输的发展,次声的卫生学意义及次声控制问题,已越来越引起人们瞩目。 生产环境中的次声称为工业次声。主要来源有:(1)生产环境中各种作低频振动的机器设备,如内燃机、涡轮机(透平)、空压机、风机、航空机械等都是生产环境中常见的次声源;(2) Infrasound is one of the unhealthy physical factors in a production environment that has not been well studied. With the development of modern industry and transportation, the infrasound’s hygienic significance and infrasound control have drawn more and more attention. The infrasound in the production environment is called industrial infrasound. The main sources are: (1) Various low-frequency vibration machinery and equipment in the production environment, such as internal combustion engines, turbines (turbines), air compressors, fans and aviation machinery are common infrasound sources in production environments; )