电容法浓度测量分析与自动配置设计

Capacitive Concentration Measurement Analysis and Automatic Configuration Design

基于溶液浓度与其介电常数之间的关系,利用FDC2214电容传感器对以溶液为电介质的电容参数进行测量,实现了在不接触溶液的情况下,能够对溶液的浓度进行实时地测量。与此同时,基于比重法,利用压力传感器对溶液的质量参数的实时监测验证电容法的准确性,并最终设计了一套可实时且自动化测量溶液浓度与自动配置特定浓度溶液的装置。以葡萄糖溶液为例进行实验,并对实验结果和误差进行分析,得出测量误差保持在1%以内。相较于已有的方法和装置,本装置不仅更加方便和实用,还在造价低廉的基础上具备拓展性好的特点,可根据实际应用情境的需要增设其他功能,能够更广泛地服务生活、生产、教学和研究等。

Based on the relationship between solution concentration and dielectric constant,this experiment uses the FDC2214 capacitance sensor to measure the capacitance parameters of solutions as the dielectric medium,achieving real-time measurement of solution concentration without contacting the solution.At the same time,based on the specific gravity method,a pressure sensor is used to monitor the mass parameters of the solution in real-time to verify the accuracy of the capacitance method.Finally,a device for real-time automatic measurement of solution concentration and automatic configuration of specific concentration solutions is designed.Glucose solution is used as an example in the experiment,and the experimental results and errors are analyzed,showing a measurement error of less than 1%.Compared with existing methods and devices,this device is not only more convenient and practical,but also has low cost and good scalability.Other functions can be added according to actual application needs,which can serve a wide range of fields such as life,production,teaching,and research.