科技创新与应用2025，Vol.15Issue(19)：26-29,4.DOI:10.19981/j.CN23-1581/G3.2025.19.006
基于惠斯通电桥的液体浓度测量装置研究
摘要
Abstract
The composition of transparent liquids is often complex,and solutes may interfere with each other during measurement,leading to errors in results.Compared to existing liquid concentration measurement methods-such as optical beat frequency wave analysis,titration,polarimetry,and refractometry-this study utilizes a Wheatstone Bridge to determine liquid concentration.This approach offers operational simplicity and broad applicability to diverse liquid systems(provided the liquid's properties align with the bridge's measurement principles).Based on the Wheatstone Bridge principle(rooted in Ohm's Law and Kirchhoff's laws),the study correlates liquid concentration with impedance changes by leveraging the liquid's physicochemical characteristics.Using saline solution as an example,the impedance variation induced by different concentrations is measured to indirectly determine the concentration.Experimental results establish a functional relationship between salt concentration and the deflection readings of an AC millivoltmeter,enabling the measurement of transparent liquid concentrations.关键词
惠斯通电桥/浓度/透明液体/基尔霍夫定律/欧姆定律Key words
Wheatstone Bridge/concentration/transparent liquid/Kirchhoff's laws/Ohm's Law分类
数理科学引用本文复制引用
周庭,周晓玉,孙郡秀,戚凤华..基于惠斯通电桥的液体浓度测量装置研究[J].科技创新与应用,2025,15(19):26-29,4.基金项目
国家自然科学基金青年基金(12104232) （12104232）
江苏省大创项目(202311460036Z) （202311460036Z）
江苏省大创项目(202411460027Z) （202411460027Z）
