Detail publikačního výsledku

Impedance tube solution for Helmholtz resonator prototyping

JUN, D.; PLÁŠEK, J.

Originální název

Impedance tube solution for Helmholtz resonator prototyping

Anglický název

Impedance tube solution for Helmholtz resonator prototyping

Druh

Článek WoS

Originální abstrakt

Transfer-function method impedance tube measurement is a well-known approach used for determining acoustical properties of mostly porous materials. This paper presents a prototype of impedance tube together with the software solution published under open-source licence. The prototype is developed specifically for experimental design of Helmholtz resonators. For room acoustic purposes, these are difficult to sufficiently characterize by other methods because of their highly frequency dependent complex-valued pressure reflection factor resulting in large phase shifts happening upon reflection. The main benefits of the presented method are the movable rigid termination operated by a stepper motor and the use of open-source libraries as well as widely available hardware for the whole measurement.

Anglický abstrakt

Transfer-function method impedance tube measurement is a well-known approach used for determining acoustical properties of mostly porous materials. This paper presents a prototype of impedance tube together with the software solution published under open-source licence. The prototype is developed specifically for experimental design of Helmholtz resonators. For room acoustic purposes, these are difficult to sufficiently characterize by other methods because of their highly frequency dependent complex-valued pressure reflection factor resulting in large phase shifts happening upon reflection. The main benefits of the presented method are the movable rigid termination operated by a stepper motor and the use of open-source libraries as well as widely available hardware for the whole measurement.

Klíčová slova

impedance tube; transfer function; Helmholtz resonator; harmonic distortion; signal filtering

Klíčová slova v angličtině

impedance tube; transfer function; Helmholtz resonator; harmonic distortion; signal filtering

Autoři

JUN, D.; PLÁŠEK, J.

Rok RIV

2025

Vydáno

21.01.2025

Nakladatel

Springer

ISSN

1839-2571

Periodikum

Acoustics Australia

Svazek

53

Číslo

1

Stát

Australské společenství

Strany od

1

Strany do

7

Strany počet

7

URL

https://link.springer.com/article/10.1007/s40857-024-00342-y

Plný text v Digitální knihovně

http://hdl.handle.net/11012/255377

BibTex

@article{BUT189709,
  author="David {Jun} and Josef {Plášek}",
  title="Impedance tube solution for Helmholtz resonator prototyping",
  journal="Acoustics Australia",
  year="2025",
  volume="53",
  number="1",
  pages="1--7",
  doi="10.1007/s40857-024-00342-y",
  issn="0814-6039",
  url="https://link.springer.com/article/10.1007/s40857-024-00342-y"
}