CHU Qin, CHENG Ming-xiao, TANG Yong, et al. Application of least-squares curve fitting in DH—6001 zirconia analyzer[J]. 2010, 29(5): 132-133+136. DOI: 10.13873/j.1000-97872010.05.042.
最小二乘曲线拟合在DH—6001 ZrO2分析仪中的应用
摘要
DH—6001 ZrO2分析仪为在线实时氧含量监测仪
因仪器控制芯片浮点计算能力不强
直接用能斯特方程计算氧含量造成系统资源消耗过大
仪器不能实现快速响应。在介绍最小二乘曲线拟合原理的基础上
采用最小二乘高次多项式对测量数据进行拟合
实现了实时在线测量。
Abstract
DH—6001 zirconia analyzer can monitor oxygen content online and real-time.Due to the capbility calculation is of the floating-point of analyzer control chip not strong
calculating oxygen content with the Nernst equation directly will consume a large amount of system resource.So analyzer can’t realize fast response.Based on the introduction least-squares curve fitting
measured data is fitted using least-square high-order moment.Online and real-time measurement is realized.