@article {Hoshi:2023:0736-2935:5335,
title = "Calibration of a cardioid microphone for improving accuracy of normal impedance measurement in a tube",
journal = "INTER-NOISE and NOISE-CON Congress and Conference Proceedings",
parent_itemid = "infobike://ince/incecp",
publishercode ="ince",
year = "2023",
volume = "268",
number = "3",
publication date ="2023-11-30T00:00:00",
pages = "5335-5342",
itemtype = "ARTICLE",
issn = "0736-2935",
url = "https://ince.publisher.ingentaconnect.com/content/ince/incecp/2023/00000268/00000003/art00036",
doi = "doi:10.3397/IN_2023_0751",
author = "Hoshi, Kazuma and Hanyu, Toshiki",
abstract = "This paper presents a method for obtaining the complex amplitudes of both the sound pressure and the particle velocity of a cardioid microphone. These values are used as calibration values in a new technique for measuring the impedance of materials using a combination of two cardioid
microphones placed in a tube. The previous technique, which utilized a single cardioid microphone placed in a tube, required two separate measurements to be taken - one with the microphone facing the specimen and one with the microphone facing away. This new method provides a more efficient
approach to impedance measurement.",
}