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| 基于范德堡法的溶液电导率绝对测量方法 | |
| 引用本文： | 林桢,张潇,魏佳莉,王晓萍,余翔. 基于范德堡法的溶液电导率绝对测量方法[J]. 计量学报, 2015, 36(2): 176-180. DOI: 10.3969/j.issn.1000-1158.2015.02.15 |
| 作者姓名： | 林桢 张潇 魏佳莉 王晓萍 余翔 |
| 作者单位： | 1. 浙江省计量科学研究院, 浙江 杭州 310013; 2. 浙江大学现代光学国家重点实验室, 浙江 杭州 310027 |
| 基金项目： | 浙江省质量技术监督系统重大科研项目 |
| 摘 要： | 将范德堡电阻率测量方法用于溶液电导率的测量中,设计了封闭式四电极电导池;测量系统采用交流微电流源提供激励信号,对响应信号进行放大与处理,通过微机系统实现与上位机的通信与控制。研究了范德堡法电导率测量的影响因素,通过对标准溶液的测量,验证了该方法测量范围可达0~40 mS/cm、测量误差控制在±1%,可以作为电导率基准测量方法。 |
| 关 键 词： | 计量学 溶液电导率 范德堡法 绝对测量法 电导池常数 |
Absolute Measurement Method for Electrolytic Conductivity Solution Based on Van Der PauW Theory |
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| LIN Zhen,ZHANG Xiao,WEI Jia-li,WANG Xiao-ping,YU Xiang. Absolute Measurement Method for Electrolytic Conductivity Solution Based on Van Der PauW Theory[J]. Acta Metrologica Sinica, 2015, 36(2): 176-180. DOI: 10.3969/j.issn.1000-1158.2015.02.15 | |
| Authors: | LIN Zhen ZHANG Xiao WEI Jia-li WANG Xiao-ping YU Xiang |
| Affiliation: | 1. Zhejiang Province Institute of Metrology, Hangzhou, Zhejiang 310013, China; 2. State Key Laboratory for Modern Optical Instrumentation, Zhejiang University, Hangzhou, Zhejiang 310027, China |
| Abstract: | The application of Van Der Pauw theory to solution electrical conductivity measurement is proposed innovatively, a closed four-electrode conductivity cell is designed. A micro AC current source is used to provide excitation signals,control circuit is used to process signals and communicate with computer.A series of experiments are carried out to study the influence factors of Van Der Pauw method.The tests of the reference materials proved the measurement range of the method is 0~40 mS/cm,the measurement error is under ±1%,which can be used for primary standard methods. |
| Keywords: | Metrology Electrolytic conductivity solution Van Der Pauw method Absolute measurement method Cell constant |
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