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Paper Abstract and Keywords
Presentation 2010-10-22 13:25
Improvement of driving contractions for loudspeakers by ultrasonic motors
Juro Ohga (Shibaura IT/MIX Lab.), Hirokazu Negishi (MIX Lab.), Ryousuke Suzuki, Gen Takeda, Hiroki Saito, Tatsuya Egawa (Chiba IT), Ikuo Oohira (I.B.), Kazuaki Maeda (TOA), Hajime Kubota (Chiba IT) EA2010-77
Abstract (in Japanese) (See Japanese page) 
(in English) The project team of authors are studying direct-radiator-loudspeakers by using two sorts of piezoelectric ultrasonic motors, rotational traveling wave type and direct reciprocal type. Study of the former model has resulted to a recommendation of constructions by co-operation of two motors, called as DMDS and DMDC. Study of the latter model is focused to direct driving systems for a cone radiator by linear motor elements. This paper reports recent improvements of them and describes their practically useful merits.
Keyword (in Japanese) (See Japanese page) 
(in English) loudspeaker / direct-radiator / ultrasonic motor / continuous revolution / reciprocal motion / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 239, EA2010-77, pp. 115-120, Oct. 2010.
Paper # EA2010-77 
Date of Issue 2010-10-14 (EA) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
Copyright
and
reproduction
技術研究報告に掲載された論文の著作権はIEICEに帰属します.(許諾番号:10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EA2010-77

Conference Information
Committee EA  
Conference Date 2010-10-21 - 2010-10-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Kanazawa-city Omi-cho Koryu Plaza 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General Topics 
Paper Information
Registration To EA 
Conference Code 2010-10-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Improvement of driving contractions for loudspeakers by ultrasonic motors 
Sub Title (in English)  
Keyword(1) loudspeaker  
Keyword(2) direct-radiator  
Keyword(3) ultrasonic motor  
Keyword(4) continuous revolution  
Keyword(5) reciprocal motion  
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1st Author's Name Juro Ohga  
1st Author's Affiliation Shibaura Institute of Technology/MIX Acoustical Laboratory (Shibaura IT/MIX Lab.)
2nd Author's Name Hirokazu Negishi  
2nd Author's Affiliation MIX Acoustical Laboratory (MIX Lab.)
3rd Author's Name Ryousuke Suzuki  
3rd Author's Affiliation Chiba Institute of Technology (Chiba IT)
4th Author's Name Gen Takeda  
4th Author's Affiliation Chiba Institute of Technology (Chiba IT)
5th Author's Name Hiroki Saito  
5th Author's Affiliation Chiba Institute of Technology (Chiba IT)
6th Author's Name Tatsuya Egawa  
6th Author's Affiliation Chiba Institute of Technology (Chiba IT)
7th Author's Name Ikuo Oohira  
7th Author's Affiliation Independent Business (I.B.)
8th Author's Name Kazuaki Maeda  
8th Author's Affiliation TOA Corporation (TOA)
9th Author's Name Hajime Kubota  
9th Author's Affiliation Chiba Institute of Technology (Chiba IT)
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Speaker
Date Time 2010-10-22 13:25:00 
Presentation Time 25 
Registration for EA 
Paper # IEICE-EA2010-77 
Volume (vol) IEICE-110 
Number (no) no.239 
Page pp.115-120 
#Pages IEICE-6 
Date of Issue IEICE-EA-2010-10-14 


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