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一、概述要控制机电设备的噪声,首先必须精确地测定其噪声幅射,找出主要噪声源,才能有效地治理噪声。对噪声作精确测定,应具备三个条件:良好的测试环境,精密的测试仪表和能使设备正常运行的试验装置。1.ISO4412标准液压噪声是工业噪声的重要组成部分,而液压泵噪声又是液压噪声的主要部分,如何测定液压泵所幅射的空气噪声级,国际标准ISO4412中已作了详细的规定。根据ISO4412,液压泵幅射的空气噪声级只能用精确法和工程法进行测定,而不允许采用概测法。
First, an overview To control the mechanical and electrical equipment noise, we must first accurately measure the noise radiation, find the main source of noise in order to effectively control the noise. Accurate determination of noise, should have three conditions: a good test environment, sophisticated test instruments and equipment to make the normal operation of the test device. 1.ISO4412 standard hydraulic noise is an important part of industrial noise, hydraulic noise and hydraulic noise is the main part of how to measure the hydraulic pump radiation air noise level, the international standard ISO4412 has made detailed provisions. According to ISO4412, the noise level of the hydraulic pump radiation can only be determined by the precise method and the engineering method, but the general method is not allowed.