Acoustic impedance measurement via FFT

1983 ◽  
Vol 74 (S1) ◽  
pp. S4-S4
Author(s):  
Werner G. Richarz
Keyword(s):  
Acoustic Impedance ◽  
Impedance Measurement

scholarly journals An Overview of Acoustic Impedance Measurement Techniques and Future Prospects

Metrology ◽  
2021 ◽  
Vol 1 (1) ◽  
pp. 17-38
Author(s):  
Nandeesh Hiremath ◽  
Vaibhav Kumar ◽  
Nicholas Motahari ◽  
Dhwanil Shukla
Keyword(s):  
Acoustic Impedance ◽  
Sound Pressure ◽  
Acoustic Pressure ◽  
Measurement Techniques ◽  
Impedance Measurement ◽  
Acoustic Medium ◽  
Future Prospects ◽  
Reverberation Chamber ◽  
Field Techniques ◽  
Acoustic Phenomenon

In order to progress in the area of aeroacoustics, experimental measurements are necessary. Not only are they required for engineering applications in acoustics and noise engineering, but also they are necessary for developing models of acoustic phenomenon around us. One measurement of particular importance is acoustic impedance. Acoustic Impedance is the measure of opposition of acoustical flow due to the acoustic pressure. It indicates how much sound pressure is generated by the vibration of molecules of a particular acoustic medium at a given frequency and can be a characteristic of the medium.The aim of the present paper is to give a synthetic overview of the literature on impedance measurements and to discuss the advantage and disadvantage of each measurement technique. In this work, we investigate the three main categories of impedance measurement techniques, namely reverberation chamber techniques, impedance tube techniques, and far-field techniques. Theoretical principles for each technique are provided along with a discussion on historical development and recent advancements for each technique.

Acoustic impedance measurement of tissue mimicking materials by using scanning acoustic microscopy

Ultrasonics ◽  
2021 ◽  
Vol 110 ◽  
pp. 106274 ◽  
Author(s):  
Burak Altun ◽  
Irem Demirkan ◽  
Esin Ozturk Isik ◽  
Ozgur Kocaturk ◽  
Mehmet Burcin Unlu ◽  
...  
Keyword(s):  
Acoustic Impedance ◽  
Impedance Measurement ◽  
Acoustic Microscopy ◽  
Scanning Acoustic Microscopy

Simulation and analysis of acoustic impedance measurement techniques for marine sediments using sonar

2014 ◽  
Vol 135 (4) ◽  
pp. 2302-2302
Author(s):  
João P. Ristow ◽  
Guillaume Barrault ◽  
Julio A. Cordioli ◽  
Gregório G. Azevedo ◽  
Antônio H. Klein ◽  
...  
Keyword(s):  
Marine Sediments ◽  
Acoustic Impedance ◽  
Measurement Techniques ◽  
Impedance Measurement

scholarly journals Acoustic impedance measurement on normal ears of children.

1988 ◽  
Vol 9 (6) ◽  
pp. 287-294 ◽  
Author(s):  
Kaoru Okabe ◽  
Sachiko Tanaka ◽  
Hareo Hamada ◽  
Tanetoshi Miura ◽  
Hiroaki Funai
Keyword(s):  
Acoustic Impedance ◽  
Impedance Measurement
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