An Overview of Acoustic Impedance Measurement Techniques and Future Prospects
| Autor: | Vaibhav Kumar, Nicholas Motahari, Nandeesh Hiremath, Dhwanil Shukla |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer science
Acoustics Impedance matching 020206 networking & telecommunications 02 engineering and technology 01 natural sciences Vibration Noise 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Aeroacoustics General Materials Science Acoustic impedance Sound pressure 010301 acoustics Electrical impedance Electromagnetic reverberation chamber |
| Zdroj: | Metrology. 1:17-38 |
| ISSN: | 2673-8244 |
| DOI: | 10.3390/metrology1010002 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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