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电导率仪检定规程中电极常数定义为两个电极之间的有效距离与有效面积之比,它是几何尺寸的物理量,电极的有效几何尺寸难以直接测量,一般通过测量已知电导率标准溶液的电导,电导率与电导的比值得出电极常数。电极受外部和内部影响,外形尺寸和结构经常发生变化,电极常数也随之改变,发生变化的电极常数必须对其修正才能保证电导率仪测量的准确。一、设计和制造的原因严格意义上,世界上不存在物理外形和尺寸完全一样的两个电极,任何一个电极都有其相应的独一无
Conductivity meter verification protocol electrode constant is defined as the effective distance between the two electrodes and effective area ratio, which is the physical size of the geometry, the electrode geometry is difficult to measure the effective direct, usually by measuring the conductivity of the known standard solution The ratio of conductance, conductivity and conductance gives the electrode constant. Electrodes are affected by both external and internal factors. Their dimensions and structure often change. The electrode constant also changes. The changing electrode constant must be corrected to ensure the accuracy of the conductivity meter. First, the design and manufacture of reasons Strictly speaking, the world does not exist in the physical shape and size exactly the same two electrodes, any one electrode has its own unique