Results 101 to 110 of about 582 (127)
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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.
Larson David A, Schumaker Daniel A
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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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Process of making an acoustic carbon diaphragm
The Journal of the Acoustical Society of America, 1991A process for producing a diaphragm for an acoustic device of carbonaceous materials which has the steps of mixing and kneading an organic mixture composition containing one or more or mixtures of a monomer, prepolymer and low polymer of relatively polymerizable thermosetting resin of a substance exhibinting high carbon residual yield after calcining ...
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Method of producing a carbon diaphragm for an acoustic instrument
The Journal of the Acoustical Society of America, 1981A method of producing a diaphragm of an acoustic instrument having the steps of blending powders of carbon such as graphite, carbon black or the like and a thermoplastic or a thermosetting resin, shaping the resultant blend into a desired form and then carbonizing the shaped blend.
Toshikazu Yoshino +3 more
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Graphene diaphragm analysis for pressure or acoustic sensor applications
Microsystem Technologies, 2013Graphene has remarkable mechanical properties, and it is a very promising material for sensors. The progress of graphene diaphragm based pressure sensor was detailed firstly. Then the deflection of pressurized circular graphene diaphragm with pre-stress was discussed, an approximate solution was given to substitute Hencky's series solution.
Shangchun Fan, Dongxue Wang, Wei Jin
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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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Modelling and simulation of diaphragm based MEMS acoustic sensors
2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE), 2014In this paper we present a simpler technique for designing an acoustic sensor based on Zinc Oxide as thin film for diaphragm. This diaphragm thickness has been optimized to withstand sound pressure level range of 100–200 dB. Stress distributions using Intellisuite has been plotted. We utilize MEMS technology to design acoustic displacement sensor chips
T. Shanmuganantham, Ashish
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Electro-Acoustic Transducer With Multi-Faced Diaphragm Assembly
The Journal of the Acoustical Society of America, 2011One mode of the present invention provides an electroacoustic transducer composed of a multifaced diaphragm assembly and a multifaced speaker housing assembly that is housed inside the multifaced diaphragm assembly. The multifaced speaker housing is configured by combining the outer peripheral surface of a plurality of individual speaker drive units ...
Kazuyuki Inagaki +2 more
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