The Methodological investigation on the measurement of thickness of downhole casing with ultrasonic pulse echo technique is carried out both in theory and in experiments.
利用理论分析和实验模拟的方法研究了超声脉冲反射技术测量井下套管厚度的方法。
The laser echo acquiring and processing technique is a key technique in laser pulse imaging.
激光回波信号采集和处理技术是激光脉冲成像的关键技术。
Based on synthesizing advantages of the pulse echo and spectral ration techniques, a new method, the equivalent acoustic impedance technique is proposed.
在综合了回声法和频谱振幅比法优点的基础上，提出等效声阻抗法。
Based on synthesizing advantages of the pulse echo and spectral ration techniques, a new method, the equivalent acoustic impedance technique is proposed.
在综合了回声法和频谱振幅比法优点的基础上，提出等效声阻抗法。
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