温度场全息干涉重建的4种方法的模拟研究

采用4种方法模拟研究了用全息干涉层析技术对轴对称温度场的重建，并对传统的环带法进行了改进，从而改善了重建效果和重建精度．针对单峰的和复杂双峰的温度场，分别对4种重建方法进行了比较研究，发现不同的方法对不同复杂程度的温度场的适应性、重建效果和精度不同，故提出对于未知的温度场可先用环带法或阿贝尔变换法重建，然后根据重建结果设定幂级次，再由曲线拟合法进行精确重建.

Simulation of four methods for the reconstruction of temperature fields by the holographic interferometry

The reconstruction of axial-symmetric temperature fields was simulated by the holographic interferometric measurement. The conventional concentric circles method was improved with higher reconstruction accuracy. For the temperature fields with single and double summits, the four reconstruction methods showed their different adaptability and accuracy. A combined method is proposed. With the help of this method, the concentric circles method or Abel conversion method was used to reconstruct the unknown temperature field, and the results are improved by the curve-fitting method whose power can be determined according to the result of two methods.