A low cost Intensity Probe

Ron Raangs; Erik Druyvesteyn; Hans-Elias de Bree

A low cost Intensity Probe

Ron Raangs, Erik Druyvesteyn, Hans-Elias de Bree

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

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.

Original language	English
Title of host publication	Proceedings of the 110th Convention Audio Engineering Society
Place of Publication	Amsterdam, The Netherlands
Publisher	Audio Engineering Society
Pages	1-11
Number of pages	11
Publication status	Published - 12 May 2001
Event	110th Audio Engineering Society Convention 2001 - Amsterdam, Netherlands Duration: 12 May 2001 → 15 May 2001 Conference number: 110

Conference

Conference	110th Audio Engineering Society Convention 2001
Country	Netherlands
City	Amsterdam
Period	12/05/01 → 15/05/01

Access to Document

http://www.aes.org/e-lib/browse.cfm?elib=9971

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@inproceedings{840f03e3a39d4b749e9e7eedbc9cefd7,

title = "A low cost Intensity Probe",

abstract = "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.",

author = "Ron Raangs and Erik Druyvesteyn and {de Bree}, Hans-Elias",

year = "2001",

month = may,

day = "12",

language = "English",

pages = "1--11",

booktitle = "Proceedings of the 110th Convention Audio Engineering Society",

publisher = "Audio Engineering Society",

address = "United States",

note = "110th Audio Engineering Society Convention 2001 ; Conference date: 12-05-2001 Through 15-05-2001",

}

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 -