On the local plane wave methods for in situ measurement of acoustic absorption

Ysbrand H. Wijnant

On the local plane wave methods for in situ measurement of acoustic absorption

Ysbrand H. Wijnant

Faculty of Engineering Technology

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

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Abstract

In this paper we address a series of so-called local plane wave methods (LPW) to measure acoustic absorption. As opposed to other methods, these methods do not rely on assumptions of the global sound field, like e.g. a plane wave or diffuse field, but are based on a local plane wave assumption. Therefore, the LPW methods can be used for any given surface/absorbing material and any arbitrary sound field. The absorption coefficient can be calculated based on a measurement of the acoustic pressure in a number of points in the vicinity of the absorbing surface. The local plane wave methods are illustrated by some numerical and experimental examples.

Original language	English
Title of host publication	Proceedings of the 21st International Congress on Sound and Vibration, ICSV 21
Place of Publication	Beijing, China
Publisher	International Institute of Acoustics and Vibration (IIAV)
Pages	-
ISBN (Print)	9781634392389
Publication status	Published - 13 Jul 2015
Event	21st International Congress on Sound and Vibration, ICSV 2014 - Beijing, China Duration: 13 Jul 2014 → 17 Jul 2014 Conference number: 21

Publication series

Name
Publisher	IIAV

Conference

Conference	21st International Congress on Sound and Vibration, ICSV 2014
Abbreviated title	ICSV
Country/Territory	China
City	Beijing
Period	13/07/14 → 17/07/14

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Cite this

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title = "On the local plane wave methods for in situ measurement of acoustic absorption",

abstract = "In this paper we address a series of so-called local plane wave methods (LPW) to measure acoustic absorption. As opposed to other methods, these methods do not rely on assumptions of the global sound field, like e.g. a plane wave or diffuse field, but are based on a local plane wave assumption. Therefore, the LPW methods can be used for any given surface/absorbing material and any arbitrary sound field. The absorption coefficient can be calculated based on a measurement of the acoustic pressure in a number of points in the vicinity of the absorbing surface. The local plane wave methods are illustrated by some numerical and experimental examples.",

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On the local plane wave methods for in situ measurement of acoustic absorption. / Wijnant, Ysbrand H.
Proceedings of the 21st International Congress on Sound and Vibration, ICSV 21. Beijing, China: International Institute of Acoustics and Vibration (IIAV), 2015. p. -.

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

TY - GEN

T1 - On the local plane wave methods for in situ measurement of acoustic absorption

AU - Wijnant, Ysbrand H.

N1 - Conference code: 21

PY - 2015/7/13

Y1 - 2015/7/13

N2 - In this paper we address a series of so-called local plane wave methods (LPW) to measure acoustic absorption. As opposed to other methods, these methods do not rely on assumptions of the global sound field, like e.g. a plane wave or diffuse field, but are based on a local plane wave assumption. Therefore, the LPW methods can be used for any given surface/absorbing material and any arbitrary sound field. The absorption coefficient can be calculated based on a measurement of the acoustic pressure in a number of points in the vicinity of the absorbing surface. The local plane wave methods are illustrated by some numerical and experimental examples.

AB - In this paper we address a series of so-called local plane wave methods (LPW) to measure acoustic absorption. As opposed to other methods, these methods do not rely on assumptions of the global sound field, like e.g. a plane wave or diffuse field, but are based on a local plane wave assumption. Therefore, the LPW methods can be used for any given surface/absorbing material and any arbitrary sound field. The absorption coefficient can be calculated based on a measurement of the acoustic pressure in a number of points in the vicinity of the absorbing surface. The local plane wave methods are illustrated by some numerical and experimental examples.

M3 - Conference contribution

SN - 9781634392389

SP - -

BT - Proceedings of the 21st International Congress on Sound and Vibration, ICSV 21

PB - International Institute of Acoustics and Vibration (IIAV)

CY - Beijing, China

T2 - 21st International Congress on Sound and Vibration, ICSV 2014

Y2 - 13 July 2014 through 17 July 2014

ER -

On the local plane wave methods for in situ measurement of acoustic absorption

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