Results 291 to 300 of about 232,461 (350)

Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System

, 2019
E33 Committee
openaire   +2 more sources

Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System

, 2010
E33 Committee
openaire   +2 more sources

Some of the next articles are maybe not open access.

Related searches:

Uncertainty Analysis of the Two-Microphone Method for Acoustical Impedance Testing

8th AIAA/CEAS Aeroacoustics Conference & Exhibit, 2002
This paper presents two methods for determining the experimental uncertainty of normal-incidence acoustic impedance measurements using the twomicrophone method (TMM). The first method is an analytical technique that extends standard first-order uncertainty methods to complex variables.
Todd Schultz, Louis Cattafesta, Toshikazu Nishida, Mark Sheplak   +3 more
openaire   +1 more source

Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System

, 2012
E33 Committee
openaire   +2 more sources

Optimized Design of High-Temperature Resistant Air-Coupled Ultrasonic Transducer (ACUT) Based on Single Acoustic Matching Layer

IEEE Sensors Journal
A high-temperature resistant air-coupled ultrasonic transducer (ACUT) was optimally designed with a single acoustic matching layer structure. The matching layer was prepared with an organosilicon substrate instead of traditional epoxy resin mixed with ...
Liang Zhang, Xinhu Xu, Xiaojie Wang, Lei Li, Hulin Guo, Lingcai Kong, Wanglong Shi, Jinliang Zang   +7 more
semanticscholar   +1 more source

Experimental Test of the Acoustic-Impedance Model for Underwater Blast Wave Transmission through Plate Materials

Journal of Engineering Mechanics, 2017
AbstractPrevious work has shown that the acoustic-impedance model does not accurately predict blast wave transmission through plates of 10 different materials in air.
Elijah Courtney, Amy C. Courtney, Lubov P. Andrusiv, Michael W. Courtney   +3 more
openaire   +1 more source

[Acoustic impedance tests in tumors of the 8th nerve (2 clinical cases)].

Annali di laringologia, otologia, rinologia, faringologia, 1980
G, Biscaro, S, Meotti, G, Camazzola
openaire   +2 more sources

[Measurement of changes of acoustic impedance as a test method for evaluation of pressure in the middle ear].

Il Valsalva, 1968
Walter Mozzo
openaire   +3 more sources

An efficient and comprehensive poroelastic analysis of hydrocarbon systems using multiple data sets through laboratory tests and geophysical logs: a case study in an iranian hydrocarbon reservoir

Carbonates and evaporites, 2023
Esmael Makarian, Ashkan Bagheri Moghadam Najaf Abad, N. S. Manaman, Danial Mansourian, A. Elyasi, Pedram Namazifard, D. Martyushev   +6 more
semanticscholar   +1 more source

[The role of acoustic impedance test in the diagnosis for occupational noise induced deafness].

Zhonghua lao dong wei sheng zhi ye bing za zhi = Zhonghua laodong weisheng zhiyebing zazhi = Chinese journal of industrial hygiene and occupational diseases, 2018
Objective: To investigate the characteristics of acoustic impedance test and its diagnostic role for occupational noise induced deafness, in order to provide an objective basis for the differential diagnosis of occupational noise induced deafness. Methods: A retrospective study was conducted to investigate the cases on the diagnosis of occupational ...
H, Chen, L J, Xue, A C, Yang, X Y, Liang, Z Q, Chen, Q L, Zheng   +5 more
openaire   +1 more source