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一、概述我国和世界上大多数工业国家的机床噪声测量标准,均以“声压级”作为考核指标,有些国家考查机床的空运转噪声,有些国家考查机床带负载运转噪声或等效连续声级。事实上,机床的声压级只能表征声场中噪声入射的情况,而不能反映机床噪声发射的本质,所以声压级的测量受环境噪声和房间反射的影响很大;同时,机床声压级的大小是随测点离声源距离变动而变化的。这样,一台机床的声压级只能表征机床噪声特性的相对值,它只适用于考查车间内部噪声对工人健康影响的大小,或判断有否危害的噪声源.另外,目前的机床噪声测量标准不管机床的种
First, an overview of China and the world’s most industrial countries, machine noise measurement standards, all with “sound pressure level” as an assessment index, some countries to examine the air-conditioning machine noise, some countries examine the machine with load running noise or equivalent continuous sound level. In fact, the sound pressure level of the machine tool can only characterize the incident of noise in the sound field, and can not reflect the essence of machine noise emission. Therefore, the measurement of sound pressure level is greatly affected by ambient noise and room reflection. Meanwhile, The size of the measuring point changes with the distance from the sound source changes. In this way, the sound pressure level of a machine tool can only represent the relative value of machine noise characteristics, it is only suitable for examining the impact of internal noise on the health of workers in the workshop, or judging whether the noise source is harmful or not.In addition, the current machine noise measurement Standard regardless of the type of machine