设备内热源的红外无损辨识研究

Study on Nondestructive Identification of Heat Source

用逐层比较的方法对二维内热源及其温度场分布进行了重构,通过数值试验验证了该方法的正确性。通过对计算结果的分析,发现该方法能够很好的用于内热源的重构以及任何一类反问题的求解。当测量结果精度较高时,该方法的计算结果非常准确。因此,可通过热电偶测量和红外扫描相结合的方法,来提高测量准确性,以达到较好的辨识结果。

The 2D heat source and thermal field are rebuilt by per layer comparing method. Subsequently it is validated with numerical experiment. From the results, it is found that the method is fit for identification of heat source and other inverse problems calculation. When the measurement is precision, the calculation result by the method is very nicety. So, to achieve better identification, thermocouple and infrared monitor should be used synchronously to improve measurement veracity.