前言目前,国内的工业电导仪通常采用铂电阻作为温度补偿元件。铂电阻的电阻率与温度几乎是线性关系,因此在测定电导率与温度为指数曲线关系的电解质溶液时,温度补偿效果较差,测量误差较大。这里,我们介绍另一种温度补偿方法——参比法。在参比电导池里,封装小体积的待测试样。首先在基准温度下确定样品的电导值。由于参比池里的溶液与被测溶液相同,故具有相同的温度系数,从而能得到 Preface At present, the domestic industrial conductivity meter usually uses platinum resistance as a temperature compensation component. The resistivity of platinum resistance and temperature is almost linear, so in the determination of conductivity and temperature exponential curve electrolyte solution, the temperature compensation effect is poor, the measurement error is large. Here, we introduce another temperature compensation method - the reference method. In the reference cell, package a small volume of sample to be tested. First determine the conductance of the sample at the reference temperature. Since the solution in the reference cell is the same as the solution to be measured, it has the same temperature coefficient so that