Open AccessЭкспериментальное исследование перестраиваемого акустического фазовращателя
Author(s) -
А.А. Невзоров,
С.В. Перченко,
Д.А. Станкевич
Publication year - 2021
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2021.18.51464.18798
Subject(s) - phase shift module , resonator , acoustics , phase (matter) , materials science , range (aeronautics) , optics , physics , insertion loss , optoelectronics , quantum mechanics , composite material
The paper presents the results of a numerical and experimental study of an acoustic phase-shifter based on a chain of rectangular Helmholtz resonators. Phase regulation of the transmitted acoustic wave is made by simultaneously changing the resonators volumes with the stepper motor. As a result of the experiment it was found that the developed acoustic phase-shifter allows to manipulate the wave phase within the range of 0 - 2π in the frequency range of 2000 - 2500 Hz. The transmittance factor is not less than 0.7. The phase-shifter can be used as a unit cell of tunable acoustic metasurface.