基于惠斯通電橋的液體濃度測(cè)量裝置研究
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中圖分類號(hào)：0435.1 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：2095-2945（2025）19-0026-04
Abstract：Thecompositionof transparentliquidsisoftencomplex，and solutesmayinterferewitheach other during measurement，leading toerorsinresults.Comparedtoexistingliquidconcentrationmeasurementmethods-suchasopticalbeat frequencywaveanalysis，titration，polarimetryandrefractometrythisstudyutlizesaWeatstoneBridgetodetermineliquid concentration.Thisapproachofersoperationalsimplicityandbroadapplicabilitytodiverseliquidsystems（providedtheliquid's propertiesalignwiththebridge'smeasurementprinciples）.BasedontheWheatstoneBridgeprinciple（rootedinOhm'sLawand Kirchoff laws），thestudycorelatesliquidconcentrationwithimpedancechangesbyleveragingtheliquid'sphysicochemical characteristics.Usingsalinesolutionasanexample，theimpedancevariationinducedbydiferentconcentrationsismeasuredto indirectlydeterminethconcentration.Experimentalresultsestablishafunctionalrelationshipbetwnsaltconcentrationandthe deflection readings of an AC milivoltmeter，enabling the measurement of transparent liquid concentrations.
Keywords：Wheatstone Bridge;concentration; transparent liquid;Kirchhoff's laws;Ohm's Law
透明液體成分復(fù)雜，溶質(zhì)間干擾易致測(cè)量誤差。（剩余3715字）