Study on the curve error of acoustic transmission path in anechoic chamber

Chengcheng Gu; Ziwei Meng; Jin Li

doi:10.1117/12.2667781

27 February 2023 Study on the curve error of acoustic transmission path in anechoic chamber

Chengcheng Gu, Ziwei Meng, Jin Li

Proceedings Volume 12585, International Conference on Precision Instruments and Optical Engineering (PIOE 2022); 125850G (2023) https://doi.org/10.1117/12.2667781
Event: International Conference on Precision Instruments and Optical Engineering (PIOE 2022), 2022, Guangzhou, China

Abstract

Moving the sound transmission device along the sound transmission path (wire rope) point by point is a common measurement method for the acoustic field characterization in an anechoic chamber. In the actual testing process, due to the influence of the weight of the sound transmission device and the wire rope, the sound transmission path will change from an ideal straight line to a curve, resulting in the measurement error for acoustic characteristics. In this paper, the catenary theoretical model is established to describe the sagging wire rope. To consider the gravity of the sound device, the finite element method is used to simulate the sound transmission path. The experimental validation shows that our model can better express the deviation of the sound transmission path concerning gravity. It is of great significance to improve the accuracy and reliability of measuring the acoustic characteristics in an anechoic chamber.

Citation Download Citation

Chengcheng Gu, Ziwei Meng, and Jin Li "Study on the curve error of acoustic transmission path in anechoic chamber", Proc. SPIE 12585, International Conference on Precision Instruments and Optical Engineering (PIOE 2022), 125850G (27 February 2023); https://doi.org/10.1117/12.2667781

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available