| 唐义政,俞宏沛,温宁,李建成.换能器辐射阻抗变化对匹配层参数的影响[J].,2002,21(6):36-39 |
| 换能器辐射阻抗变化对匹配层参数的影响 |
| Effect of changing the transducer impedance on the matching layer parameter |
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| 中文摘要: |
| 匹配层换能器在实用中往往由于辐射阻抗的变化破坏了“最佳”匹配层参量的选取[1]。本文从反映阻抗概念给出了必要的匹配层厚度修正[2],并以实例计算证明了修正公式的实用意义。 |
| 英文摘要: |
| Practically radiation impedance of a transducer has effects on parameter optimization of its matching layer. Thus radiation impedance should be taken into account to modify optimum parameters which result from transducer harmonic frequency. In this paper, an equation is derived to gain the optimum thickness of the layer and its effectiveness is demonstrated by examples. |
| DOI：10.11684/j.issn.1000-310X.2002.06.009 |
| 中文关键词: 匹配层 辐射阻抗 带宽 |
| 英文关键词: Matching layer Radiation impedance Frequency-band |
| 基金项目: |
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