Explicit correction of ultrasonically determined elastic wave velocities for transducer‐bond phase shifts
Explicit correction of ultrasonically determined elastic wave velocities for transducer‐bond phase shifts
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超声确定的换能器键合相移弹性波速度的显式校正
DOI：
10.1029/jb086ib05p03736
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发表时间：
1981
影响因子：
--
通讯作者：
D. Weidner
中科院分区：
文献类型：
--
作者：
I. Jackson;H. Niesler;D. Weidner
样品长度或换能器配置不同的对比实验为换能器-键合相移提供了一种可靠、准确且不依赖于模型的明确校正超声确定的弹性波速的方法。在熔融二氧化硅和铝样品上进行了大量这样的对比实验，使用了铌酸锂和石英传感器，结果表明，旅行时间的绝对精度通常可以达到±1 ns数量级。在未来的超声波研究中使用这些校正程序应该会大大提高测量的矿物弹性系数的压力和温度导数的可靠性，从而有助于更有意义地解释地球内部的地震剖面。
Comparative experiments, in which either sample length or transducer configuration is varied, provide a reliable, accurate, and model-independent means of explicitly correcting ultrasonically determined elastic wave velocities, for transducer-bond phase shifts. The results of a number of such comparative experiments, employing both lithium niobate and quartz transducers on fused silica and aluminium samples, indicate that an absolute accuracy of order ±1 ns in travel time is routinely attainable. The use of these correction procedures in future ultrasonic studies should greatly improve the reliability of measured pressure and temperature derivatives of mineral elastic moduli and thereby facilitate more meaningful interpretation of seismic profiles for the earth's interior.