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LIGHT PORTABLE ELECTROPNEUMATIC LOUDSPEAKER
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作者 macdonald d.l. 《Chinese Journal of Acoustics》 1989年第4期359-365,共7页
This paper analyses the influence of certain parameters and factors on the characteristics of the electropneumatic loudspeaker and describes the experimental work carried out. The developed portable electropneumatic l... This paper analyses the influence of certain parameters and factors on the characteristics of the electropneumatic loudspeaker and describes the experimental work carried out. The developed portable electropneumatic loudspeaker possesses good properties with a flat frequency response from 400 Hz to 2 kHz and a maximum sound pressrue output of 120dB at a distance 2 metre on axis from the horn mouth .The magnetic flux density at the magnetic gap is 19 ,000 gauss .The electropneumatic loudspeaker is small in size and lightweight. 展开更多
关键词 LIGHT PORTABLE ELECTROPNEUMATIC LOUDSPEAKER
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