球面换能器汇聚系统V(z)曲线的射线理论
RAY-OPTICAL EVALUATION OF v(z) FOR CONCAVE TRANSDUCER IN THE ACOUSTIC MICROSCOPE
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摘要: 作者根据几何声学原理,分析了反射式声学显微镜中球面换能器汇聚系统V(z)曲线的形成过程,求出了V(z)曲线的表达式,同时给出了实验结果。Abstract: Using a ray-optical approach,the authors derive simple formulas of V(z) for toft-cave transducer in the scanning acoustic microscope in reflection,and experimental results of V(z) are given.