A COMPUTER-BASED PH MEASUREMENT AND CONTROL-SYSTEM FOR FERMENTATION PROCESSES

被引：14

作者：

BENHASSAN, RM

GHALY, AE

MANSOUR, MH

机构：

[1] TECH UNIV NOVA SCOTIA,DEPT AGR ENGN,POB 1000,HALIFAX B3J 2X4,NS,CANADA

[2] DALHOUSIE UNIV,SCH ENGN,HALIFAX B3H 4H6,NS,CANADA

来源：

APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY | 1991年 / 30卷 / 03期

关键词：

PH; CONTROL; MEASUREMENT; OVERSHOOTING; COMPUTER;

D O I：

10.1007/BF02922028

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

The measurement and control of pH is essential in most fermentation processes. The highly nonlinear response of pH to the addition of acid or base makes pH control by conventional means very difficult. This paper presents a description of the hardware and software of a computer-based pH measurement and control system. The system is applicable to any fermentation process requiring in situ pH measurement and control and is capable of controlling the pH within +/- 0.1 U with a very short response time. It has a proportional metering device capable of adding the required amount of acid (or alkaline) solution with high accuracy, thereby preventing overshooting.

引用

页码：233 / 245

页数：13