作者：陈炜庆

作者单位：广州市计量检测技术研究院, 广东广州 510030

关键词：覆膜电极; 溶解氧; 溶解氧测定仪; 示值误差; 检定

摘要：

提出了一种在空气中测量覆膜电极溶解氧测定仪示值误差的方法。首先分析了相关的理论基础,并且介绍了覆膜电极溶解氧测定仪及其示值误差的检测原理,分析了JJG 291-1999《覆膜电极溶解氧测定仪》中示值误差检定方法的不足之处,提出了采用操作简单,准确可靠的空气测量法,能够实现覆膜电极溶解氧测定仪示值误差的检定。

Discussing about indication error of film electrode dissolved oxygen meter

CHEN Wei-qing

Guangzhou Institute of Measurement and Testing Technology, Guangzhou 510030, China

Abstract: In this article the authors proposed a method for measures indication error of film electrode dissolved oxygen meter:air calibration.Firstly they analyzed the basic theory and presented a description of this method.They also analyzed the method of the JJG 291-1999《Film Electrode Dissolved Oxygen Meter》.The results show that this method(air calibration) is practical for measuring indication error of film electrode dissolved oxygen meter.

Keywords: Film electrode; Dissolved oxygen; Dissolved oxygen meter; Indication error; Verification

2006, 32(5): 72-73,76  收稿日期: 2006-5-11;收到修改稿日期: 2006-7-25

基金项目: 

作者简介: 陈炜庆(1968-),男,工程师,主要从事理化计量检测技术工作。

参考文献

[1] JJG 291-1999,覆膜电极溶解氧测定仪[S].
[2] JJG 291-1982,复膜电极溶解氧测定仪试行检定规程[S].
[3] SC T 7006-2001,溶解氧测定仪[S].
[4] GB 11913-1989,水质溶解氧的测定电化学探头法[S].
[5] GB 7489-1987,水质溶解氧的测定碘量法[S].
[6] ISO 5814:1990,Water Quality-Determination of Dissoled Oxygen-Electrochemical Probe Method[S].