| PbMoO4声光器件外部阻抗匹配网络的设计 |
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| 引用本文： | 余姗,谢本亮.PbMoO4声光器件外部阻抗匹配网络的设计[J].压电与声光,2011,33(2). |
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| 作者姓名： | 余姗 谢本亮 |
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| 作者单位： | 赣南师范学院物理与电子信息学院,江西赣州,341000 |
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| 摘 要： | 在PbMoO4声光器件的换能器与电源之间插入阻抗匹配网络,对换能器的声能传输损耗有一定的补偿作用.给出了阻抗匹配后换能器损耗的计算公式、匹配电路结构和元件值、能量损耗与频率的关系曲线图,得出合适的阻抗匹配网络可使得PbMoO4声光器件换能器的声能传输损耗降低,3 dB频带宽度增大的结论.利用阻抗匹配网络的这一优点,优化设计了PbMoO4声光器件换能器的结构.
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| 关 键 词： | 声光器件 换能器 阻抗匹配 损耗 |
Design of External Impetance Network in PbMoO4 Acousto-optic Device |
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| YU Shan,XIE Benliang.Design of External Impetance Network in PbMoO4 Acousto-optic Device[J].Piezoelectrics & Acoustooptics,2011,33(2). |
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| Authors: | YU Shan XIE Benliang |
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| Affiliation: | YU Shan,XIE Benliang(School of Physics and Electronic Information,Gannan Normal University,Ganzhou 341000,China) |
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| Abstract: | Inserting an impetance matching network between the transducer and the driven source of PbMoO4 acousto-optic device can to some extent compensate acoustics energy transfer loss of transducer.Provided the formulas for calculating transducer energy loss after inserting matching network,determined the construction and component value of matching network,and showed TL-F curve of transducer(where TL is energy loss and F is frequency).Concluded that for PbMoO4 acousto-optic device,appropriate impetance matching n... |
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| Keywords: | acousto-optic device transducer impetance matching loss |
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