基于智能手机光传感器测量液体粘滞系数  

Measurement on Liquid Viscosity Coefficient Based on Smartphone Optical Sensor

作　　者：郭明磊[1] 袁竺 韩易霖 李勇[1] GUO Minglei;YUAN Zhu;HAN Yilin;LI Yong(Anhui University of Science and Technology,Bengbu 233030,China)

机构地区：[1]安徽科技学院,安徽蚌埠233030

出　　处：《通化师范学院学报》2025年第2期34-38,共5页Journal of Tonghua Normal University

基　　金：安徽省质量工程“101计划”项目(2023ylyjh041);安徽省质量工程项目(2023cxtd077);安徽省质量工程教学研究项目(2022jyxm344);省级大学生创新创业项目(S202310879036X);安徽科技学院校级重大教研项目(xj2022147).

摘　　要：基于弹簧振子在竖直方向做欠阻尼振动实验测量了液体-蓖麻油的粘滞系数.在弹簧振子实验装置上安装小光源,并在小光源的侧方放置智能手机,利用智能手机Phyphox软件中的光传感器获取光照度实时变化的数据,通过数值拟合得到弹簧振子做欠阻尼振动的阻尼因数,进而测量出液体粘滞系数.实验结果表明:该方法不仅克服了人工计时误差,且操作方法简便,测量精度高,为液体粘滞系数的测量提供了新途径.The viscosity coefficient of liquid castor oil was measured by conducting an under-damping vibration experiment using a spring oscillator in the vertical direction.A small light source was installed on the spring oscillator experimental device,and a mobile was placed on the side of the small light source.The data of real time changes in light intensity were obtained,and the damping factor of the spring oscillator for under-damping vibration was obtained through numerical fitting,thereby measuring the liquid viscosity coefficient.The experimental results show that this method can overcome manual timing errors,and it is simple to operate,having high measurement accuracy.

关 键 词：振动 光传感器 粘滞系数 欠阻尼 

分 类 号：G642.0[文化科学—高等教育学]