电池内阻测试仪电池内阻测试仪制作说明一、原理电池内阻测试仪最基本的工作原理是采用四线法进行电池内阻的测量。如图1所示,电池内阻测试仪(以下简称BK)总共有4根出线,一对Bat蓝线是对电流采样的功率线路,一对sense红线是对电压采样的信号线路,分开采样的优点是,红线电流约为0,电压采样准确,基本可以忽略BK出线存在阻抗对测试结果产生影响的可能性。图1四线法基本原理图内阻的测量思想是:通过BK分别测得电池空载和带载(BK对其进行放电)时的电压,求得电压差,再除以带载时的电流值即可求出电池存在的内阻R,即:VV,空荷R,I荷二、实现图2电源接口BK出线为4条,两两一对,如图2所示,左侧相当于图1的sense线,用作school)],44housebuildingaswellasmorethan1000copiesofbooks,morethan10kindsofcollectionofnewspapersandmagazines,,theJapaneselearnedthatthenationalGovernmentestablishedinXITangTombrotten"clip"taxes,taxofficerslivein8ofYanDongvillagefarmershome,troopsatnight,,theJapaneseteamwenttothecountryside"sweep"oTungYangJiaQiaoyanTemplewallandmetYangJia溇ZhouDana(male)weeksbecauseoflong-termillnessandcan'tworkinthefields,theJapaneseseehisfacefromscratchwithoutcalluses,regardhimas"Shina",,,eto"mop-up"arehiding,motherof9ZhouGuanbaoZhangAyingtodrilla"drymound",wasdiscoveredbytheJapanese,,is7zhouhaijiangzhigrandfatherZhouYingbaotoescapetheJapanesearmy,wasfoundontheroad,,theJapanesearmyinYanTombraiding,hasarrested16people,infengqiaocigarettesthismorningbang,killing11peopleontheRiver,,laterto
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