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酸度、电导、溶解氧分析仪温度补偿的区别与联系 认领 被引量:1

Differences and relations of temperature compensation for acidity,conductivity and dissolved oxygen meter
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摘要 电化学分析仪器结构复杂,其传感器直接测量的溶液参数与目标参数往往不同。当仪器的传感器、直接测量参数或间接测量参数(目标参数)中一个或多个因素受温度影响而变化时,为了准确测量目标参数,往往需要对仪器进行温度补偿。仪器校准时,是在某一特定温度下建立直接参数与间接参数的函数关系,因此需要将受温度影响的参数换算成该温度下的值,才能得到准确的目标参数值。虽然电导率仪、酸度计和覆膜式溶解氧测定仪的测量参数、原理,受温度影响情况各不相同,但是其温度补偿过程也遵循这个原则;该温度补偿原则也可推广到其他分析仪器。 The structure of electrochemical analyzer is complex,and the solution parameters measured directly by its sensors are often different from the target parameters.It is often necessary to compensate the temperature of the instrument for accurately measuring the target parameters.The calibration of instrument is to establish the functional relationship between direct parameters and indirect parameters at a specific temperature.Therefore,it is necessary to convert the parameters affected by temperature into the values at that specific temperature.Although the measuring parameters and principles of conductivity meter,acidity meter and coated dissolved oxygen meter are affected by temperature differently,the temperature compensation process also follows this principle,which can extend to other analytical instruments.
作者 张国城 Zhang Guocheng(Beijing Institute of Metrology, Beijing 100029)
出处 《分析仪器》 CAS 2019年第4期44-47,共4页 Analytical Instrumentation
关键词 电导率仪 酸度计 溶解氧测定仪 温度补偿 conductivity meter acidity meter dissolved oxygen meter temperature compensation
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