集成霍尔开关传感器测量非透明液体的黏度  

Measuring the viscosity of non-transparent liquid with integrated hall switch sensor

作　　者：王本阳 毛晓芹 王新顺 曲文葛 张立彬 WANG Ben-yang;MAO Xiao-qin;WANG Xin-shun;QU Wen-ge;ZHANG Li-bin(Department of Optoelectronic Science,School of Science,Harbin Institute of Technology,Weihai 264209,China)

机构地区：[1]哈尔滨工业大学(威海)理学院光电科学系,山东威海264209

出　　处：《物理实验》2018年第4期27-29,共3页Physics Experimentation

基　　金：哈尔滨工业大学校内基金资助(No.IDGA18102146;No.ITGA10002017);山东省基金资助(No.B2016M020)

摘　　要：针对落球法无法测量非透明液体的黏滞系数的问题,改进了实验中测量小球下落时间t的方法.该方法的测量电路由多片高灵敏度的集成开关式霍尔传感器、指示LED灯、与门逻辑芯片和计时器等顺序组成.电路板A和B上的信号分别驱动计时器开始和停止计时,最后计时器显示出磁性小球下落一定距离所用的时间t.该测量方法直观方便,并且具有比较高的测量精度.To measure the viscosity of non-transparent liquid by falling a ball,an experimental method of measuring the falling time of the ball was introduced.Two circuit boards were made up of high sensitivity integrated hall switch sensors,LED indicators,gate logic chip and timer.The signals derived from two circuit boards drove a timer to start and stop respectively.Finally,the timer displayed the time of a magnetic ball falling a certain distance between two circuit boards.This method was very intuitive and convenient and has high measurement accuracy.

关 键 词：黏度 集成霍尔开关 非透明液体 与门芯片 

分 类 号：O357[理学—流体力学]