| 穿单孔换能器的频率与孔尺寸间的关系研究 |
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| 引用本文： | 宋希阳,胡静,贺西平,潘晓娟.穿单孔换能器的频率与孔尺寸间的关系研究[J].黑龙江大学自然科学学报,2009,26(5). |
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| 作者姓名： | 宋希阳 胡静 贺西平 潘晓娟 |
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| 作者单位： | 陕西师范大学应用声学研究所,西安,710062 |
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| 基金项目： | 国家自然科学基金资助项目(10874107);;陕西省自然科学基金资助项目(2007A07) |
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| 摘 要： | 研究了前盖板穿单孔夹心式换能器的谐振频率与穿孔尺寸间的变化关系。基于穿单孔换能器的等效电路,利用解析法推导出了该结构换能器的频率方程,计算得到了频率随穿孔尺寸变化的关系曲线,结果发现谐振频率并不是随着穿孔质量的增大而单调上升。在孔深不变时,谐振频率随孔径的增加而增大,而在孔径不变时谐振频率随着孔深的增大先增加后减小,进而解释了其物理意义。
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| 关 键 词： | 宽频带 穿单孔换能器 机械阻抗 谐振频率 |
Frequency of the wide-band sandwich transducer with single hole in relation of the hole's size |
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| SONG Xi-yang,HU Jing,HE Xi-ping,PAN Xiao-juan.Frequency of the wide-band sandwich transducer with single hole in relation of the hole's size[J].Journal of Natural Science of Heilongjiang University,2009,26(5). |
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| Authors: | SONG Xi-yang HU Jing HE Xi-ping PAN Xiao-juan |
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| Institution: | Applied Acoustics Institute;Shanxi Normal University;Xi'an 710062;China |
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| Abstract: | Stduy on the frequency of the wide-band sandwich transducer with single hole in relation of the hole's size.Get the curve of relation between the frequency of the transducer and the hole's size from the frequency equation baseding on the equivalent circuit of such transducer,then found that the resonance frequency is not enlarging along with the perforation quality at a monotonous increase,but increases first and then reduces with the unchangeable aperture and increase bore depth,while the bore depth is unc... |
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| Keywords: | wide-band transducer with single hole mechanical impedance resonance frequncy |
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