The conversion mechanisms of a chemical signal (gas concentration) into a physical signal (SAW phase velocity change) in SAW gas sensors and the way to separate them are discussed.
讨论了在SAW气体的传感器中把化学信号(气体浓度)转换成物理信号(SAW相速度变化)的机制以及将它们彼此分离开来的方法。
The change of sound velocity with pressure, dryness degree, void-fraction, and phase-transition coefficient are analyzed. Some important conclusions are derived.
分析了两相流体中音速随压力、干度、汽隙率、相变系数等的变化关系，并从中得出了一些重要的结论。
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