Title: Noise emission measurements <i>in situ</i>—A comparison between different methods
Abstract: Within the frame of a European project within the research program Standards, Measurements and Testing, different methods for the determination of emission sound pressure levels and sound power levels have been tested. The different methods have been ISO/DIS 3747, ISO 9614-2, the ISO 11200 series, that is ISO 11201, 11202 and 11204, and a new method, ISO ‘‘11205,’’ using the sound intensity level to approximate the emission sound pressure level. Comparison measurements have been made on several different machines in situ using eight different measurement teams on each machine/test site combination. The results indicate that ISO 11202 tends to overestimate the emission sound pressure level in relation to ISO 11201, that ISO 11204-4 has a limited field of application, that ‘‘11205’’ tends to underestimate the emission sound pressure level, in particular for large machines with noise emitting parts far from each other, that ISO/DIS 3747 works very well, and that ISO 9614-2 tends to underestimate the sound power level in relation to ISO 3741. The results are discussed and possible improvements to the different standards are proposed.
Publication Year: 1999
Publication Date: 1999-02-01
Language: en
Type: article
Indexed In: ['crossref']
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