玻璃中Fe2+和Fe3+测试方法的Tobit模型估计

快速准确地测定浮法玻璃中Fe^2＋和Fe^3＋的含量对生产过程中气泡缺陷的控制、稳定生产、提高质量、减少损失具有十分重要的意义。研究发现，利用Fe^2＋和Fe^3＋离子对不同波长光的吸收特性可以建立快速测定Fe^2＋和Fe^3＋含量的方法，并采用Tobit模型进行回归分析标准曲线，很好地解决了在低Fe含量的高质量超白及超薄浮法玻璃生产过程中使用最小二乘法回归标准曲线造成较大误差的问题，满足了生产需要。

Tobit Model Estimate of the Measurement of Fe~(2+) and Fe~(3+) in Float Glass

It is very important to measure the content of Fe2+ and Fe3+ for stabilizing the production and quality of float glass.It is discovered that the content of Fe2+ and Fe3+ can be measured quickly by the characteristic absorbance of Fe2+ and Fe3+ ions at given wavelength.In this paper Tobit Model is used to regress the calibration curve for dealing with the larger error in least square regression.And the error maybe accepted by this method in the high quality extra-clear and ultra-thin glass,which is low conte...