An Ironless Large Displacement Flat Piston Loudspeaker
This paper presents a small wide-band loudspeaker. Particular efforts have been made to reduce the nonlinearities of the loudspeaker as much as possible. The motor structure is completely ironless, the elastomer suspensions are replaced by ferrofluid seals and a monobloc carbon...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Institute of Fundamental Technological Research Polish Academy of Sciences
2014-09-01
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| Series: | Archives of Acoustics |
| Subjects: | |
| Online Access: | https://acoustics.ippt.pan.pl/index.php/aa/article/view/598 |
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| Summary: | This paper presents a small wide-band loudspeaker.
Particular efforts have been made to reduce the nonlinearities of the
loudspeaker as much as possible. The motor structure is completely ironless, the
elastomer suspensions are replaced by ferrofluid seals and a monobloc carbon
foam piston substitutes the traditional conic membrane. The circular radiating
surface, which is flat, has a diameter equal to only 2cm. Therefore, in order to
obtain a sufficient sound pressure level at low frequencies, large displacements
of the piston are necessary. After a detailed description of each part of the
loudspeaker, theoretical results of the expected performances of this transducer
are given. |
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| ISSN: | 0137-5075 2300-262X |