TY - GEN
T1 - A low cost Intensity Probe
AU - Raangs, Ron
AU - Druyvesteyn, Erik
AU - de Bree, Hans-Elias
N1 - Conference code: 110
PY - 2001/5/12
Y1 - 2001/5/12
N2 - Sound Intensity is a useful measure in acoustics because in a reverberant environment free-field measurements can be done. The proposed low cost intensity probe combines a sound particle velocity sensor and a microphone, which can be used as separate devices or in one package. For the latter case the velocity and the pressure are measured at almost the same location. Since the intensity is calculated from the cross-correlation of the velocity and pressure, a very accurate phase matching, as for the p-p method, is not necessary; and its signal to noise ratio (SNR) is higher than for the separate sensors. The data-acquisition and processing is implemented on a standard personal computer, combined with a simple calibration, and thus creating a very powerful intensity measuring device.
AB - Sound Intensity is a useful measure in acoustics because in a reverberant environment free-field measurements can be done. The proposed low cost intensity probe combines a sound particle velocity sensor and a microphone, which can be used as separate devices or in one package. For the latter case the velocity and the pressure are measured at almost the same location. Since the intensity is calculated from the cross-correlation of the velocity and pressure, a very accurate phase matching, as for the p-p method, is not necessary; and its signal to noise ratio (SNR) is higher than for the separate sensors. The data-acquisition and processing is implemented on a standard personal computer, combined with a simple calibration, and thus creating a very powerful intensity measuring device.
M3 - Conference contribution
SP - 1
EP - 11
BT - Proceedings of the 110th Convention Audio Engineering Society
PB - Audio Engineering Society
CY - Amsterdam, The Netherlands
T2 - 110th Audio Engineering Society Convention 2001
Y2 - 12 May 2001 through 15 May 2001
ER -