一种基于正则参数的表面温度测量方法  

The Surface Temperature Measurement Based on Regularized Parameters

作　　者：吴洪潭[1] 崔志尚[1] 

机构地区：[1]中国计量学院计量技术工程学院,杭州310018

出　　处：《自动化仪表》2006年第2期58-59,62,共3页Process Automation Instrumentation

摘　　要：由于淬火过程中探头表面传热行为的复杂性,所示直接测量探头表面温度是非常困难的。以探头中心热电偶所测的温度数据为基础,提出了一种基于正则参数的表面温度反演数学模型,并根据特殊情况下的分析解与数值解的比较,获得模型的最佳正则参数,提高了表面温度的测量精度。数值实验表明,探头内热电偶偏离中心位置反而有利于减少反演的计算误差。It is difficult to directly measure the surface temperature of the probe due to the complexity of heat transfer behavior on the probe surface in quench process. Based on the measured temperature data of the thermocouple in the center of the probe, the back calculation mathematics model of surface temperature based on regularization parameter is proposed. In accordance with the comparison of analytical solution and value solution under special conditions the optimal regularization parameter is obtained, thus the measurement accuracy of surface temperature is enhanced. The experiment shows that the deviation of center of thermocouple inside the probe will decrease the calculation error of back calculation.

关 键 词：表面温度 传热反问题 正则参数 计算误差 

分 类 号：TB193[一般工业技术]