板波是机械波(相对于电磁波而言)的一种，机械波的传递需要介质，而在平板中传播的机械波就叫板波。举个例子，在无限长，有限宽，且非常薄(相较于波长而言，通常远小于一个波长，常见于十分之一个波长左右)的扁带介质中传播的超声波。
介绍基于最低阶反对称板波激励、扫频幅度相位显示的复合材料粘结质量评价的新方法。
Descriptions are made of a new instrument based on the lowest order asymmetric plate wave excitation and swept frequency amplitude phase display.
本文首先分析了板波诱发纵波在柔性接头构件中的传播规律，对原始回波信号进行时域和频域分析。
The transmission rule of the lamb wave in the structure of the flexible joint is discussed, and the ultrasonic pulse echo is analyzed in the time-field and frequency-field.
讨论了可用于液相环境下测量的声板波(APM)传感器的工作原理，并介绍了该传感器在物理、化学和生物检测中的应用。
The theory of acoustic plate mode (APM) sensor used in liquid phase in details is discussed. The design and the application of APM sensor in biology, chemistry and physics are presented.
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