基于声学法的炉膛二维温度场图像重建

Image Reconstruction of Two Dimensional Temperature Field in Furnaceby Using Acoustic Method

介绍了一种利用声学传感器获得测量数据的方法 ,并在此基础上论述了利用最小二乘法对温度场分布进行重建的温度场测量方法。在温度场重建过程中 ,由于声波路径的弯曲效应是影响重建精度的重要因素 ,因此利用费马定理对声波路径进行了补偿 ,给出了该方法的测量原理及计算机仿真结果 ,仿真结果证明了该方法的正确性。

In this article,the method of obtaining measuring data by using acoustic transducer is introduced.On this basis,the reestablishment of temperature field distribution by using least square method is expounded.In reestablishing temperature field,because the bending effect of sound wave path is an important factor influencing the accuracy of reestablishment,the sound wave path is compensated by Fermat theorem.The measuring principle of this method and the result of simulation are given.The result of simulation proves the correctness of the method.