Publication detail

Impedance tube solution for Helmholtz resonator prototyping

JUN, D. PLÁŠEK, J.

Original Title

Impedance tube solution for Helmholtz resonator prototyping

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

JUN, D.; PLÁŠEK, J.

Released

21. 1. 2025

Publisher

Springer

ISBN

1839-2571

Periodical

Acoustics Australia

Year of study

53

Number

1

State

Australia

Pages from

1

Pages to

7

Pages count

7

URL

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

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="1839-2571",
  url="https://link.springer.com/article/10.1007/s40857-024-00342-y"
}