Results 21 to 30 of about 3,149 (257)
The acoustic resonance of rectangular and cylindrical cavities [PDF]
13th AIAA/CEAS Aeroacoustics Conference (28th AIAA Aeroacoustics Conference), 2007 An investigation is conducted on the acoustic resonance that develops in rectangular and cylindrical cavities with rigid walls. An analytical model for the small amplitude acoustic perturbations inside an enclosure with rigid walls is developed from classical linerized acoustics.
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Sensors, 2020 A cylindrical shell piezoelectric vibration gyroscope is a kind of Coriolis vibration gyroscope. Its core components are the cylindrical quartz resonator (CQR) and the piezoelectric ceramic electrodes (PCEs).
Tianliang Qu +3 more
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Whispering Gallery Mode Resonators for Precision Temperature Metrology Applications
Sensors, 2021 In this work, the authors exploited the whispering gallery mode (WGM) resonator properties as a thermometer. The sensor is made of a cylindrical sapphire microwave resonator in the center of a gold-plated copper cavity. Two coaxial cables act as antennas
Giovanni Gugliandolo +4 more
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Cylindrical Resonator Utilizing a Curved Resonant Grating as a Cavity Wall [PDF]
Micromachines, 2012 A thin-film grating on a curved substrate functions as a highly reflective and wavelength sensitive mirror for a diverging wave that has the same curvature as the substrate. In this paper we propose a cylindrical cavity surrounded by a curved resonant grating wall, and describe its resonance characteristics. Through finite-difference time-domain (FDTD)
Yasuo Ohtera +2 more
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Circular polarized 3D-printed cylindrical DRA using parasitic dielectric helix
Scientific Reports, 2023 This article presents a 3D-printed cylindrical dielectric resonator antenna operating at 5.8 GHz that achieves circular polarization by integrating a fully dielectric parasitic helix with a higher permittivity than the cylindrical resonator.
Sebastian Diaz +3 more
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Sensors, 2022 We show new approaches to developing acoustic liquid sensors based on phononic crystals. The proposed phononic crystal integrates fluidic elements. A solid block with periodic cylindrical holes contains a defect—a liquid-filled cylindrical cavity. We pay
Nikolay Mukhin +4 more
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Calculation of the Properties of Reentrant Cylindrical Cavity Resonators [PDF]
IEEE Transactions on Microwave Theory and Techniques, 2007 The lowest resonant frequencies of reentrant cylindrical cavity resonators are calculated using the method of moments to obtain upper and lower bounds. The accuracy and convergence of the results are investigated and the factors and shunt impedances calculated.
Carter, Richard G. +2 more
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Trimming of Imperfect Cylindrical Fused Silica Resonators by Chemical Etching
Sensors, 2019 The cylindrical resonator gyroscope (CRG) is a kind of solid-state gyroscope with a wide application market. The cylindrical resonator is the key component of CRG, whose quality factor and symmetry will directly affect the performance of the gyroscope ...
Yunfeng Tao +5 more
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Acoustics, 2022 This article considers the influence of the orifice arrangement in a cover of a cylindrical resonator on the impedance determined by the Dean’s method. A resonator with a small height and a low perforation degree is studied.
Vadim Palchikovskiy +2 more
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TWO-LAYERED QUASIOPTICAL SAPPHIRE RESONATOR FOR BIOLIQUIDS DIELECTROMETRY [PDF]
Радиофизика и электроника, 2017 WGM resonators can be used for studies of condensed matter, especially for the study of the dielectric liquids properties. However, the electromagnetic properties of the real resonator structures are not well understood.
А. А. Barannik +2 more
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