The practical assessment of errors in sound intensity measurement |
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| Affiliation: | 1. Dental Materials Science, Faculty of Dentistry, The University of Hong Kong, Hong Kong Special Administrative Region, P. R. China;2. Department of Mechanical Engineering, Ferdowsi University of Mashhad, Mashhad, Iran;1. Department of Civil Engineering and Architecture (DICAR), Politecnico di Bari, via Orabona 4, 70125 Bari, Italy;2. Department of Physics, University of Oxford, Parks Road, Oxford OX1 3PU, UK;3. Department of Chemistry, University of Washington, Seattle, WA 98105, USA;4. University of New South Wales, Faculty of Built Environment, Sydney, NSW 2052, Australia;1. Heilongjiang Cold Region Architectural Science Key Laboratory, School of Architecture, Harbin Institute of Technology, 66 West Dazhi Street, Nan Gang District, Harbin 150006, PR China;2. School of Architecture, University of Sheffield, Western Bank, Sheffield S10 2TN, United Kingdom;1. Master of Architecture, Shiraz University, Shiraz, Iran;2. Department of Architecture, Shahid Beheshti University, Tehran, Iran;3. Assistant Professor, Department of Construction, Shahid Beheshti University, Tehran, Iran;1. Washington State University, PO Box 645815, Pullman, WA, 99164-6815, USA;2. University of North Carolina, 9201 University City Blvd, Charlotte, NC, 28223-0001, USA;1. School of the Built Environment, University of Reading, RG6 6AW, Reading, United Kingdom;2. Centre for Building Performance Research (CBPR), School of Architecture, Victoria University, Wellington 6001, New Zealand |
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| Abstract: | Many sources of error in two transducer sound intensity measurements have been discussed in the literature. Many of these errors are difficult to assess in a practical situation, but two in particular can be calculated. These are the error associated with phase mis-match and random error. The use of the known phase mis-match is discussed as regards its use in evaluating the quality of a particular measurement, and the use of coherence is discussed as regards its use in calculating random error. |
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