高等学校化学学报

高等学校化学学报 ›› 1991, Vol. 12 ›› Issue (5): 602.

• 论文 • 上一篇    下一篇

卡尔曼滤波滴定分析法研究(Ⅰ)--热力学平衡滴定模型及其应用

李志良, 石乐明, 李梦龙, 俞汝勤   

  1. 湖南大学化学化工系, 410082
  • 收稿日期:1988-09-12 出版日期:1991-05-24 发布日期:1991-05-24
  • 通讯作者: 李志良
  • 基金资助:

    国家自然科学基金;中国科学院计算机化学开放实验室资助课题

A Study on Kalman Filtering Titrimetric Analysis Method (Ⅰ)--Model for Thermodynamical Equilibrium Titration and Its Aplications

Li Zhi-liang, Shi Le-ming, Li Meng-long, Yu Ru-qin   

  1. Department of Cheinistry and Cliemical Engineering, Hunan University, Ctiangsha, 410082
  • Received:1988-09-12 Online:1991-05-24 Published:1991-05-24

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摘要： 卡尔曼滤波(简称KF)为一种最佳滤波方法,是化学计量学分辨和校正的有效工具。滴定时,考察滴定过程中滴定体积与量测信号的变化,可建立相应的状态与量测方程,用KF递推算法估计状态并确定终点。本文拟分析热力学平衡滴定模型并考察某些参数的影响。

关键词: 卡尔曼滤波, 滴定分析, 热力学平衡滴定, 滴定模型

Abstract: In this paper a study on the model for thermodynamical equilibrium titration has been made. The modeling of the state space and measurement process has been studied. The effects of some parameters,such as the sampling interval,model error,and measurement noise etc.,on the filtering and smoothing estimation have also been examined. Anew method for determining the end-point or equal-point was proposed and satisfactory results were obtained for the simulated and practical titration data.

Key words: Kalman filtering, Titrimetric analysis, Thermodynamical equilibrium titration, Titration model

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