化学分析计量
化學分析計量
화학분석계량
CHEMICAL ANALYSIS AND METERAGE
2010年
3期
88-89
,共2页
自动校准型pH计%输入阻抗%示值误差
自動校準型pH計%輸入阻抗%示值誤差
자동교준형pH계%수입조항%시치오차
automatic calibrating pH meter%input impedance%indication error
由于一些自动校准型pH计设置的校准点与计量检定规程要求的pH7（或电计等电位值）无法对应，探讨了用pH6．86点代替pH7点，解决了电计输入阻抗引起的示值误差无法按照计量检定规程要求进行检定的问题。通过实验验证了该方法的可行性。
由于一些自動校準型pH計設置的校準點與計量檢定規程要求的pH7（或電計等電位值）無法對應，探討瞭用pH6．86點代替pH7點，解決瞭電計輸入阻抗引起的示值誤差無法按照計量檢定規程要求進行檢定的問題。通過實驗驗證瞭該方法的可行性。
유우일사자동교준형pH계설치적교준점여계량검정규정요구적pH7（혹전계등전위치）무법대응，탐토료용pH6．86점대체pH7점，해결료전계수입조항인기적시치오차무법안조계량검정규정요구진행검정적문제。통과실험험증료해방법적가행성。
Based on the fact that some calibration points setting in some automatic calibrating pH meters do not correspond to the equipotential value requirements of the verification regulation, how to use point pH 6.86 instead of pH 7 was discussed. In this way, the problem that input impedance of pH meter can not measured in accordance with the verification regulation was solved. The feasibility of this method was proved by experimentation.
