Results 21 to 30 of about 52,178 (320)

The construction and testing of an acoustic energy harvester consisting of a Helmholtz resonator and a loudspeaker

open access: yesJournal of Physics: Theories and Applications, 2020
Sound energy is all around but not properly utilized despite being a source of electricity. This research was conducted to construct and test an acoustic energy harvester consisting of a Helmholtz resonator and a loudspeaker.
Ikhsan Setiawan, Mulaiyinatus Sifa
doaj   +1 more source

Influence of Loudspeaker Configurations and Orientations on Sound Localization [PDF]

open access: yesArchives of Acoustics, 2022
As the virtual reality (VR) market is growing at a fast pace, numerous users and producers are emerging with the hope to navigate VR towards mainstream adoption.
Shu-Nung Yao
doaj   +1 more source

Optimization of Shunted Loudspeaker for Sound Absorption by Fully Exhaustive and Backtracking Algorithm

open access: yesApplied Sciences, 2021
The shunted loudspeaker with a negative impedance converter is a physical system with multiple influencing parameters. In this paper, a fully exhaustive backtracking algorithm was used to optimize these parameters, such as moving mass, total stiffness ...
Zihao Li, Xin Li, Bilong Liu
doaj   +1 more source

Dynamic analysis using finite element method for a nonlinear spring-supported disk: Technique to reduce second-order distortion due to diaphragm shape

open access: yesMechanical Engineering Journal, 2017
This research aims to reduce the second-order distortion due to diaphragm vibration. The quadratic term of the restoring force of nonlinear springs varies in the pulling and compression directions.
Mitsuharu WATANABE   +4 more
doaj   +1 more source

Ironless Loudspeakers [PDF]

open access: yesIEEE Transactions on Magnetics, 2007
We note the drawbacks of classical loudspeaker motors: the inductance varies with the coil's position, there is a reluctant effect and Eddy currents appear because of the iron in the motor. We then present ironless structures of loudspeaker motors to eliminate these drawbacks.
openaire   +2 more sources

One-Dimensional Haptic Rendering Using Audio Speaker with Displacement Determined by Inductance

open access: yesMachines, 2016
We report overall design considerations and preliminary results for a new haptic rendering device based on an audio loudspeaker. Our application models tissue properties during microsurgery.
Avin Khera   +7 more
doaj   +1 more source

Evaluating the onset conditions of a thermoacoustic Stirling engine loaded with an audio loudspeaker

open access: yesFrontiers in Thermal Engineering, 2023
This paper aims to evaluate the onset conditions of a thermoacoustic Stirling engine loaded with a commercially available audio loudspeaker. The thermoacoustic engine converts supplied heat power into mechanical power in the form of sound, without any ...
Shu-Han Hsu, Chuan-Heng Lai
doaj   +1 more source

Experimental Characterisation of a Flat Dielectric Elastomer Loudspeaker

open access: yesActuators, 2018
Conventional loudspeakers are often heavy, require substantial design spaces and are hard to integrate into lightweight structures (e.g., panels). To overcome these drawbacks, this paper presents a novel extremely flat loudspeaker which uses dielectric ...
Emiliano Rustighi   +3 more
doaj   +1 more source

Developing and evaluating a hybrid wind instrument [PDF]

open access: yes, 2014
A hybrid wind instrument generates self-sustained sounds via a real-time interaction between a computed excitation model (such as the physical model of human lips interacting with a mouthpiece) and a real acoustic resonator.
Buys, Kurijn, Laney, Robin, Sharp, David
core   +2 more sources

Effect of Loudspeakers on the In Situ Electric Field in a Driver Body Model Exposed to an Electric Vehicle Wireless Power Transfer System

open access: yesEnergies, 2020
This study computationally evaluates the effect of loudspeakers on the in situ electric field in a driver body model exposed to the magnetic field from a wireless power transfer (WPT) system in an electric vehicle (EV), one with a body made of carbon ...
Junqing Lan, Akimasa Hirata
doaj   +1 more source

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