Abstract: Based on variation of water quality parameters under the influence of frequency conversion electromagnetic field，the relationship between conductivity，pH value and magnetic acting time was analyzed by using the correlative degree analysis and balanced adjacent degree.The results of Origin and Matlab showed that the relevance of conductivity and magnetic acting time was better than pH value.Compared with pH value，conductivity was more suitable for constructing the mathematical model of electromagnetic field and water quality parameters and was more closely associated with electromagnetic field than pH value in the process of fouling formation.This method provided the theoretical and experimental basis for the suitable selection of mathematical model of electromagnetic parameters and water quality parameters.

Key words: electromagnetic field, water quality parameter, mathematical model

摘要： 基于变频电磁场作用下各水质参数的变化规律，采用关联度分析法及均衡接近度对电导率、pH值与磁场作用时间的关系进行细致分析，得出污垢生成过程中电导率相比pH值与电磁场有更密切的关联，为电磁场参数与多水质参数的数学模型的建立提供理论及实验依据。

关键词: 电磁场, 水质参数, 数学模型