電導(dǎo)率儀電導(dǎo)池常數(shù)的測量不確定度評定

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【摘要】電導(dǎo)率儀是測量液體溶液電導(dǎo)率的主要儀器設(shè)備，電導(dǎo)率儀電導(dǎo)池常數(shù)對測量數(shù)據(jù)的準(zhǔn)確性有著重大影響。本文依據(jù)JJG 376—2007《電導(dǎo)率儀》，對電導(dǎo)率儀電導(dǎo)池常數(shù)進行校準(zhǔn)，并給出了應(yīng)用的測量不確定度。

【關(guān)鍵詞】電導(dǎo)率儀；電導(dǎo)池常數(shù)；測量不確定度

【DOI編碼】10.3969/j.issn.1674-4977.2024.05.076

Evaluation of Uncertainty Measurement on Conductivity Meter Conductance Cell Constant

CHENG Shuozhen， ZHAO Sihai， CHEN Yun， LYU Ting， CHEN Yuan

（Hubei Institute of Measurement and Testing Technology， Wuhan 430200， China）

Abstract： Conductivity meter is the main equipment for measuring the conductivity of liquid solution. The conductivity cell constant of the conductivity meter has a great influence on the accuracy of the measurement data. In this paper， based on JJG 376—2007 Electrolytic Conductivity Meters， the uncertainty generated in the measurement process of conductivity meter conductance cell constant is evaluated.

Keywords： conductivity meter； conductivity cell constant； uncertainty measurement

電導(dǎo)率儀是通過電化學(xué)測量方法測定電解質(zhì)溶液電導(dǎo)率的儀器，在水質(zhì)分析、污水處理、環(huán)境檢測和工農(nóng)業(yè)生產(chǎn)等領(lǐng)域有著廣泛的應(yīng)用[1-5]。（剩余1587字）