Results 131 to 140 of about 117,140 (175)
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Electro-acoustic transducer with diaphragm and blank therefor
The Journal of the Acoustical Society of America, 1985The transducer diaphragm includes a folded sheet of thin film material, having a front surface and having a plurality of rearwardly extending projections in the form of fins or vanes thereon. Each one of the projections has at least one conductor portion disposed thereon.
David A. Larson, Daniel A. Schumaker
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Fabrication of circular diaphragm for piezoelectric acoustic devices
18th IEEE International Conference on Micro Electro Mechanical Systems, 2005. MEMS 2005., 2005This paper describes a fabrication method of a circular diaphragm using boron etching stop method. It is applied to acoustic transducers such as microphones or microspeakers and so on. The sensitivity is expected to be increased with the circular diaphragm through the simulation results to compare with a general rectangular diaphragm.
null Woon Seob Lee +4 more
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Electro acoustic transducer with improved diaphragm
The Journal of the Acoustical Society of America, 1979The invention relates to an electroacoustic transducer for the sound reproduction, comprising a substantially olive-shaped diaphragm body formed of a plurality of convexly pre-curved diaphragm segments capable of bending, damping material accommodated within the diaphragm body, at least one oscillation generator provided on one end of the diaphragm ...
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Diaphragms for acoustic instruments and method of producing the same
The Journal of the Acoustical Society of America, 1983A diaphragm for acoustic instruments such as speakers is produced by blending and kneading a thermoplastic resin such as polyvinyl chloride resin with graphite powder, rolling the blend into a sheet until graphite particles are oriented, and forming the sheet into a desired diaphragm shape.
Tsunehiro Tsukagoshi +3 more
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Acoustic diaphragm for speakers and method of producing the same
The Journal of the Acoustical Society of America, 1982An acoustic diaphragm for speakers having a sandwich structure constituted by a core material comprising an elongated web material bent to have a plurality of radial projections, and upper and lower surface members adhered to the upper and lower edges of the core member, as well as a method of producing the same. The acoustic diaphragm of the invention
Naraji Sakamoto +4 more
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The Journal of the Acoustical Society of America, 2003
Pang-Chuan Chu, Hsiu-Yen Lee
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Pang-Chuan Chu, Hsiu-Yen Lee
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Electro-acoustic transducer with free edge diaphragm
The Journal of the Acoustical Society of America, 1982In a loudspeaker, a suitably formed edge part is provided around the periphery of the diaphragm to form a certain gap between the edge part and an edge receiving part which has an annular recess corresponding to the configuration of the edge part, so that the pressure gradient in the gap is in balance with the surrounding pressure gradient, with the ...
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Process for the preparation of films or diaphragms for acoustic applications
The Journal of the Acoustical Society of America, 1996Process for the preparation of films or diaphragms for acoustic applications, exhibiting improved vibration properties, and films or diaphragms obtained by this process, particularly diaphragms for electro-mechanical transducers, particularly for loudspeakers.
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A Sensitivity-Enhanced Fiber Optic Fabry-Perot Acoustic Sensor Based on Grooved Diaphragm
IEEE Photonics Technology Letters, 2023Tingyun Wang, Xiaobei Zhang
exaly