pH电极极化引起的测量不准确及解决方法  

Inaccurate Measurements Caused by pH Electrode Polarization and Their Solutions

作　　者：陈达华[1] 王桂华[1] 温林浩[1] 

机构地区：[1]广州甘蔗糖业研究所广东省甘蔗改良与生物炼制重点实验室国家糖业质量监督检验中心,广州510316

出　　处：《甘蔗糖业》2010年第5期32-34,45,共4页Sugarcane and Canesugar

摘　　要：本文主要介绍糖厂pH自动测量控制系统中测量电极极化的成因。通过对pH电极的输入电路进行重新设计,提高电路输入阻抗,降低流经电极的电流,能有效延长电极的使用期限。This paper analyzes the cause of pH electrode polarization in automatic measurement and control system of sugar factory. Through redesigning the pH electrode input circuit, improving the circuit input impedance, and reducing the current flowing through the electrode, the period of use of electrodes can be extended effectively.

关 键 词：PH值 自动测量 电极极化 改良电路 

分 类 号：TS243.8[轻工技术与工程—制糖工程]