| Issue |
J. Phys. IV France
Volume 02, Number C1, Avril 1992
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics
|
|
|---|---|---|
| Page(s) | C1-431 - C1-434 | |
| DOI | https://doi.org/10.1051/jp4:1992192 | |
Deuxième Congrès Français d'Acoustique / Second French Conference on Acoustics
J. Phys. IV France 02 (1992) C1-431-C1-434
DOI: 10.1051/jp4:1992192
CETIM, Département Acoustique Industrielle, 52 Avenue Félix Louat, BP. 67, F-60300 Senlis cedex, France
© EDP Sciences 1992
J. Phys. IV France 02 (1992) C1-431-C1-434
DOI: 10.1051/jp4:1992192
CALIBRATION DE SONDE INTENSIMÉTRIQUE EN TUBE À ONDE STATIONNAIRE
H. PÉPIN and T.M. PHANCETIM, Département Acoustique Industrielle, 52 Avenue Félix Louat, BP. 67, F-60300 Senlis cedex, France
Abstract
The performance of acoustic intensimetry using the two-microphone technique depends on the accuracy of the calibration of the measurement system, involving both the probe and the intensity processor. The recent ISO/IEC 1043 draft standard implies the use of high precision laboratory calibrators for frequency reponse, phase mismatch and directivity measurements. A calibration method in a standing wave tube has been developped in CETIM with respect to be IEC specifications. Depending on the acoustic field generated in the tube, for a given standing wave ratio, one can measure the intensity probe caracteristics, including diffraction effect and directivity curves.
© EDP Sciences 1992