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阶梯结构一级超声跟踪时的布拉格带宽和声光器件的最佳设计

俞宽新, 徐介平

俞宽新, 徐介平. 阶梯结构一级超声跟踪时的布拉格带宽和声光器件的最佳设计[J]. 北京工业大学学报, 1980, 6(4): 32-39.
引用本文: 俞宽新, 徐介平. 阶梯结构一级超声跟踪时的布拉格带宽和声光器件的最佳设计[J]. 北京工业大学学报, 1980, 6(4): 32-39.
Yu Kuan-xin, Xu Jie-ping. The Bragg Bandwidth of the First-Order Beam Steering with Step Configuration and the Optimum Design of Acoustooptic Devices[J]. Journal of Beijing University of Technology, 1980, 6(4): 32-39.
Citation: Yu Kuan-xin, Xu Jie-ping. The Bragg Bandwidth of the First-Order Beam Steering with Step Configuration and the Optimum Design of Acoustooptic Devices[J]. Journal of Beijing University of Technology, 1980, 6(4): 32-39.

阶梯结构一级超声跟踪时的布拉格带宽和声光器件的最佳设计

The Bragg Bandwidth of the First-Order Beam Steering with Step Configuration and the Optimum Design of Acoustooptic Devices

  • 摘要: 通过对确定频响(Pa(F))/(Ne2Pao)~F的一般公式的理论分析,证明与平面结构的情况一样,阶梯结构的频响曲线亦在条件F1+F2=2下基本上对中心频率F=1对称。在此基础上,对各种换能器片数Ne计算确定了可能得到的最大布拉格带宽,并得到器件的最佳设计。
    Abstract: According to the theoretical analysis of the general formulas determing the frequency response (Pa(F))/(Ne2Pao)~F, it is proved that,just as in the case of plane configuration, the condition that the frequency response curves in the case of step configuration are almost symmetrical about the central frequency F=1 is still F1+F2=2. Based upon this argument, we detrmine, through systematical calculations, the largest Bragg bandwidth which can be obtained for various numbers of transducer pieces Ne. At the same time, we obtain the optimum design of acoustoptic Devices.
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出版历程
  • 收稿日期:  1980-05-13
  • 网络出版日期:  2022-08-08
  • 发布日期:  1980-12-09

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