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《南京理工大学学报》（自然科学版）[ISSN:1005-9830/CN:32-1397/N]

Issue:

2005年04期

Page:

455-459

Research Field:

Publishing date:

Info

Title:

Accuracy Control of Static-weighting Microcomputer-controlled Proportioning System

Author(s):

SHEN Xian-feng; YAO Jin;  REN De-jun;  LIU Yang

College of Manufacturing Science and Engineering, Sichuan University, Chengdu 610065,China

Keywords:

microcomputer-controlled proportioning system;  accuracy control;  dropping error;  weighting error;  accumulated error

PACS:

TP273.5

DOI:

-

Abstract:

The proportioning process of the static-weight ing microcomputer- controlled proportioning system determines that the proportioning errors comprise material dropping error, weighting error and accumulated error. Compensating algorithms for the feeding error based on a mathematical model are employed to decrease the dropping error. Measures concerning sensor selection, circuit measurement , hopper installation, and software filtering, nonlinear corrections are taken to reduce the weighting error. Compensating algorithms for the proportioning error are applied to lower the accumulated error. Applications in a cement plant show that certain channel. s proportioning error reduced from 1. 2 % to 0. 6 % .

References:

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[ 2] Alves M F, Cremonini R A, DalMolin D C C. A comparison of mix proportioning methods for high-strength concrete [ J] . Cement & Concrete Composites, 2004, 26( 6) : 613- 621.
[ 3] 宋辉, 方宗达. 自动配料控制系统的称量问题[ J] . 自动化与仪器仪表, 2003, 106( 2) : 23- 24.
[ 4] 赵思明, 熊善柏, 饶应昌. 料斗秤配料系统微机控制的仿真研究[ J] . 农业机械学报, 1996, 27( 2) : 55- 59. [ 5] 王文周, 李大读. 智能控制在煤石配料中的应用及专家系统尝试[ J] . 纯碱工业, 2003, 26( 2) : 38- 40.

Memo

Memo:

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Common functions

Last Update: 2013-03-03