Piezoelectric Micromachined Ultrasonic Transducer-Integrated Helmholtz Resonator with Microliter-Sized Volume-Tunable Cavity [PDF]
Sensors, 2022 In this study, a piezoelectric micromachined ultrasonic transducer (PMUT) is integrated with a microliter-sized volume-tunable Helmholtz resonator. The passive Helmholtz resonator is constructed using an SU8 photolithography-defined square opening plate ...
Guo-Hua Feng, Wen-Sheng Chen
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Fabrication and Performance Evaluation of the Helmholtz Resonator Inspired Acoustic Absorber Using Various Materials [PDF]
Micromachines, 2020 A soundwave is transmitted by adjacent molecules in the medium, and depending on the type of sound, it exhibits various characteristics such as frequency, sound pressure, etc. If the acoustic wavelength of the soundwave is sufficiently long compared with
Sung Ho Lee +4 more
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Measurement of an Analyte Concentration in Test Solution by Using Helmholtz Resonator for Biosensor Applications [PDF]
Sensors, 2019 In this paper, an indirect method of measuring an analyte concentration in a test solution using the resonant frequency change of a Helmholtz resonator is proposed, using a novel architecture of Helmholtz resonator filled with two kinds of fluids (fixed ...
Yugang Chen, Yong-Hwa Park
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Characterization of a Dual Nonlinear Helmholtz Resonator [PDF]
Micromachines, 2022 Resonant elements can generate small amounts of energy that make them pertinent for feeding miniaturized accelerometers with the energy needed. Suitable oscillator candidates are Helmholtz resonators, which have been, for a long time, analyzed and ...
Maher O. Al-Turk +2 more
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Design, Manufacturing, and Acoustical Analysis of a Helmholtz Resonator-Based Metamaterial Plate
Acoustics, 2021 Acoustic metamaterials are materials artificially engineered to control sound waves, which is not possible with conventional materials. We have proposed a design of an acoustic metamaterial plate with inbuilt Helmholtz resonators.
Arpan Gupta
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Tunable Helmholtz Resonators Using Multiple Necks
Micromachines, 2023 One of the uses of Helmholtz resonators is as sound absorbers for room acoustic applications, especially for the low frequency range. Their efficiency is centered around their resonance frequency which mainly depends on elements of their geometry such as
Georgios Eleftherios Stavroulakis +1 more
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Acoustic metasurface constructed by periodic parallel Helmholtz resonators for gas sensing applications [PDF]
Scientific ReportsThis study investigates a compact acoustic metasurface of periodic parallel Helmholtz resonators with a resonator defect located in the middle of the structure for gas-sensing applications.
Zaky A. Zaky +5 more
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Noise filter using a periodic system of dual Helmholtz resonators
Scientific ReportsThis study investigates noise reduction using a periodic arrangement of dual Helmholtz resonators and explores the introduction of defects within this periodic structure. The transfer matrix method was employed to carry out theoretical research.
Zaky A Zaky +2 more
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Design of Helmholtz Resonator with Required Characteristics [PDF]
MATEC Web of Conferences, 2020 The method of calculation design of the Helmholtz resonator in the duct is considered based on the transition to dimensionless parameters, which are determined concerning the transverse size of the duct. The acoustical impedance of Helmholtz resonator is
Bykov Aleksei, Komkin Alexandr
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Advanced Film-Type Acoustic Reflector Inspired by Helmholtz Resonator [PDF]
한국정밀공학회지, 2020 Sound waves propagate in a manner in which energy is transmitted by adjacent molecules in the medium. These adjacent molecules exhibit inherent sound wave characteristics, such as height and wavelength, depending on the sound frequency.
Sung Ho Lee +4 more
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