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在工业生产中,由于机器转动、流体排放、工件撞击与摩擦所产生的噪声,称为生产性噪声。按照噪声来源分为以下三类:机械性噪声,由机械的撞击、摩擦、转动而产生,如纺织机、球磨机、电锯、机床等发出的声音;流体动力性噪声,由于气体压力突变或液体流动而产生,如通风机、高压蒸汽喷射时或液体冲刷等声音;电磁性噪声,如发电机、变压器所发出的声音。噪声作业劳动者的职业健康监护噪声对人的危害是多方面的,对听觉系统的损害属于特异性损害,可通过中枢神经系统对心血管、消化、神经-内分泌等造成非特异性损害;噪声对听觉系统的损害是缓
In industrial production, noise generated by machine rotation, fluid discharge, workpiece impact and friction is called production noise. According to the noise source, it is divided into the following three categories: mechanical noise, which is generated by mechanical impact, friction and rotation, such as sound emitted by textile machines, ball mills, chainsaws and machine tools; hydrodynamic noise due to abrupt changes in gas pressure or liquid Flow generated, such as fan, high pressure steam jet or liquid erosion and other sound; electromagnetic noise, such as generators, transformers sound. Noise Occupational Occupational Health Monitoring of Workers Noise is harmful to humans in many ways. Damage to the auditory system is a specific injury that can cause non-specific damage to the cardiovascular, digestive, neuro-endocrine systems through the central nervous system. Damage to the auditory system is slow