电子天平替代分析天平在磁化率测定中的应用  

Replacement of Analytical Balance by Electric Balance in the Application for the Determination of Magnetic Susceptibility

作　　者：施巧芳[1] 范国康[1] 陈铭[1] 杨占军[1] 刁国旺[1] 阚锦晴[1] SHI Qiao-fang;FAN Guo-kang*;CHEN Ming;YANG Zhan-jun;DIAO Guo-wang;KAN Jin-qing(College of Chemistry and Chemical Engineering,Yangzhou University,Yangzhou,Jiangsu 225002,China)

机构地区：[1]扬州大学化学化工学院,江苏扬州225009

出　　处：《教育教学论坛》2017年第5期261-262,共2页Education And Teaching Forum

基　　金：江苏省高等教育教改研究立项项目(重点课题)<化学基础理论课程体系的优化及其在创新型化学人才培养中的应用>;2014年扬州大学教学改革研究课题;编号(YZUJX2014-50B)

摘　　要：目前国内物理化学实验室所使用的磁天平通常配的是电光分析天平。此天平在称量时,需要长时间的稳定平衡和重复多次的加减砝码,因此不仅废时较多,而且操作繁琐。在本文中,采用电子天平来代替电光分析天平,并对电子天平进行了简单改装。所得结果表明,改进后的装置能够大大缩短实验时间和有效提高实验准确度。另外,对于其他需用电子天平下挂钩称量的实验,均可采用本改装方案。The magnetic balance used in the physical chemistry laboratory in China is usually equipped with an electron-optical analytical balance,which needs repeat altering weights for reading balance,so this operation is inconvenient and time-consuming. In this paper,we used a modified electric balance instead of analytical balance to measure magnetic susceptibility of a tested sample. As a result,both experimental accuracy was effectively improved and experimental time was greatly saved for the modification of experimental equipment. In addition,this modification method can also be generalized to other weight measurement which needs the balance bottomhook.

关 键 词：磁化率 电子天平 分析天平 

分 类 号：G642.3[文化科学—高等教育学]