DocumentCode
2387056
Title
Rectangular loudspeaker by tuck shape PVDF bimorph
Author
Ohga, J. ; Matsushita, K. ; Takei, T. ; Moriyama, N.
Author_Institution
Shibaura Inst. of Technol., Tokyo, Japan
fYear
2002
fDate
2002
Firstpage
231
Lastpage
234
Abstract
A bimorph sheet of PVDF (polyvinylidenfluoride) film is applied to a flat rectangular loudspeaker as a folded zigzag-tuck shape diaphragm whose size is, for example, 240 mm×114 mm. This loudspeaker is characterized by moderate size with a wide frequency range, light weight and no magnetic flux radiation. This paper shows measuring results of acoustical and electrical characteristics by using a few samples, and the output level is examined by theoretical calculations.
Keywords
acoustic field; diaphragms; electric impedance; loudspeakers; polymer films; sensitivity analysis; 114 mm; 240 mm; PVDF film; acoustical characteristics; bimorph sheet; electrical characteristics; flat rectangular loudspeaker; folded zigzag-tuck shape diaphragm; light weight loudspeaker; polyvinylidenfluoride film; wide frequency range; Electric variables measurement; Frequency response; IEC standards; Impedance; Loudspeakers; Magnetic field measurement; Pressure measurement; Resonance; Resonant frequency; Shape;
fLanguage
English
Publisher
ieee
Conference_Titel
Electrets, 2002. ISE 11. Proceedings. 11th International Symposium on
Print_ISBN
0-7803-7560-2
Type
conf
DOI
10.1109/ISE.2002.1042986
Filename
1042986
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