Department of Engineering Technology, University of North Carolina at Charlotte Charlotte, NC 28223, United States.
Department of Mechanical Engineering, Vanderbilt University Nashville, TN 37235, United States.
Ultrasonics. 2014 Apr;54(4):1029-36. doi: 10.1016/j.ultras.2013.12.004. Epub 2013 Dec 17.
Reflections from geometric discontinuities can be used with ultrasonic energy to predict the temperature of an interface where classical temperature measurement techniques are impractical because of physical access limitations or harsh environmental conditions. Additionally, these same ultrasonic measurements can be used with inversion methods commonly applied to ill-posed heat transfer problems to increase the accuracy of the measurement of surface temperature or heat flux at the surface of interest. Both methods for determining surface temperature are presented, along with a comparison of results both from a verification example and using data gathered in a field test of the methods. The results obtained with these two methods are shown to be in good agreement with an empirical relationship used in the design of large caliber guns.
可以使用超声能量从几何不连续处反射来预测界面温度，在由于物理接入限制或恶劣环境条件而使得经典温度测量技术不切实际的情况下，这一点非常有用。此外，还可以将相同的超声测量值与通常应用于不适定传热问题的反演方法结合使用，以提高感兴趣表面的表面温度或热通量测量的准确性。本文介绍了两种确定表面温度的方法，并通过验证示例和现场测试数据的比较，对这两种方法的结果进行了比较。结果表明，这两种方法与大口径火炮设计中使用的经验关系式吻合良好。
