作　　者： ; ; ; ;

机构地区： 中国计量学院信息工程学院

出　　处： 《计算机应用》 2010年第12期254-256,259,共4页

摘　　要： 电导率参数是海水淡化中保证系统正常运行和衡量淡化水质量是否合格的重要指标。基于变频激励的电导率测量方法和嵌入式Linux开发环境,设计了海水淡化用电导率测量软件。针对正弦波信号峰—峰值采集的特点,设计了一种单周期内连续采集的方法。根据电导率与最佳激励频率的对应关系,给出了变频激励测量的流程和实现。 Electrical conductivity is an important index to keep system running normally and estimate desalinated seawater quality in seawater desalination.An electrical conductivity measurement software was designed based on variable frequency excitation and embedded Linux develop environment.Towards the characteristic of sine wave peak-value sampling,a method of continuous sampling in one period was provided.According to the relationship between electrical conductivity and most fitted exciting frequency,flow chart and software realization based on variable frequency excitation were presented.

关 键 词： 海水淡化 电导率 变频激励 采样 嵌入式系统

领　　域： [自动化与计算机技术] [自动化与计算机技术]