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NIST Authors in Bold
|Author(s):||Randall P. Wagner; Victor Nedzelnitsky;|
|Title:||Determination of Wave Motion Correction Values Required for Comparison Calibrations of a New Working Standard Microphone.|
|Published:||December 11, 2008|
|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|
|Pages:||pp. 1 - 13|
|Keywords:||Acoustical calibration, calibration of microphones, microphone calibration, NIST microphone calibration, reciprocity calibration, standard microphone, wave motion correction, working standard microphone.|
|Research Areas:||Electronics & Telecommunications|
|PDF version:||Click here to retrieve PDF version of paper (205KB)|