红外纸张厚度测量中参数选取的模型研究

Study on parameter selection of infrared paper thickness measurement

在红外纸张厚度测量系统研究过程中,厚度用系统输出电压表征.在研究过程中,准确找出系统输出电压与待测样品厚度之间的对应关系是系统工作的精髓.然而,工作距离、供电电流与频率等参数会影响厚度检测的精度,合理选择最佳工作距离、最佳供电电流与最佳频率成为本系统研究的重要目的.通过前期大量实验,对数据进行分析整合,通过Matlab软件建立起数学模型,对该数学模型的求解与计算,确立其中的参数并确定最终数学表达式.将所建立模型和批量实验数据结合对比,发现通过模型找出的最佳工作距离、最佳供电电流与最佳频率和实验选取的最佳参数完全相同,得出模型建立正确的结论.为后续系统在工业中应用选择最佳参数提供坚实的理论与实验基础.

In the study of infrared paper thickness measurement system,the output voltage of the system is characterized by the thickness of the system. In the course of the study,it is the essence of the system to find out the corresponding relationship between the output voltage of the system and the thickness of the sample to be measured. However,working distance,power supply current and other parameters will affect the accuracy of the thickness measurement. The reasonable choice of the best working distance and the best supply current has become an important purpose of this system. Through a lot of experiments,the data were analyzed and integrated,the mathematical model was established by Matlab software,and the mathematical model was solved and calculated. The parameters were established,and the final mathematical expression was determined. The models and experimental data compared with the batch,found by the model to find out the best working distance optimal parameter selection and optimal power supply current and the same. The model set up a correct conclusion. Solid theoretical and experimental basis for the selection of the optimal parameters are used to the following systems in industry.