Wagner, R.
and Nedzelnitsky, V.
(2008),
Determination of Wave Motion Correction Values Required for Comparison Calibrations of a New Working Standard Microphone., NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=824744
(Accessed December 10, 2024)
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Determination of Wave Motion Correction Values Required for Comparison Calibrations of a New Working Standard Microphone.
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Abstract
Comparison calibrations of microphones based on the reciprocity method are performed with both the microphone under test and a reference standard microphone inserted into an acoustical coupler. For these calibrations, the wave motion correction W is needed to account for the departure from spatially uniform sound pressure amplitude in the coupler at frequencies for which the coupler interior dimensions are not small compared to a wavelength of sound. This internal report describes the procedure used to determine the values of W4192 applicable to comparison calibrations of a relatively new working standard microphone, the Bruel and Kjaer model 4192, and provides these values.Citation
NIST Interagency/Internal Report (NISTIR) - 7526
Report Number
7526
NIST Pub Series
Pub Type
NIST Pubs
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Keywords
Acoustical calibration, calibration of microphones, microphone calibration, NIST microphone calibration, reciprocity calibration, standard microphone, wave motion correction, working standard microphone.
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Created December 11, 2008, Updated February 19, 2017