Research Surveys of Electrochemical Sensors for in-situ Determining Hydrogen in Steels  

作　　者：Gang YU, Xueyuan ZHANG and Yuanlong DU (State Key Laboratory for Corrosion and Protection, Institute of Corrosion and Protection of Metals, Chinese Academy of Sciences, Shenyang 110015, China) 

出　　处：《Journal of Materials Science & Technology》2000年第3期305-310,共6页材料科学技术（英文版）

摘　　要：The principle, construction and application of two types of electrochemical sensors-amperometric and potentiometric are surveyed. Both types of sensors are very sensitive to changes in temperature. The accuracy of hydrogen measurement depends on both the precision of sensors developed and the reliable technique of installation and security of sensors. The two types of sensors have been used for in-situ determining hydrogen permeated in steels owing to a corrosive reaction, a hydrogen gas circumstance at elevated temperatures and high pressure or also a pretreatment process such as pickling and plating process, etc.The principle, construction and application of two types of electrochemical sensors-amperometric and potentiometric are surveyed. Both types of sensors are very sensitive to changes in temperature. The accuracy of hydrogen measurement depends on both the precision of sensors developed and the reliable technique of installation and security of sensors. The two types of sensors have been used for in-situ determining hydrogen permeated in steels owing to a corrosive reaction, a hydrogen gas circumstance at elevated temperatures and high pressure or also a pretreatment process such as pickling and plating process, etc.

关 键 词：Research Surveys of Electrochemical Sensors for in-situ Determining Hydrogen in Steels NIO 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]