| 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 (201KB) |
