用三线摆检测鸡蛋的生熟度  

Testing the cooked degree of eggs using three-wire pendulum

作　　者：赵霞 祝巍 谢宁 ZHAO Xia;ZHU Wei;XIE Ning(Physics Experiment Teaching Center,School of Physical Science,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]中国科学技术大学物理学院物理实验教学中心,安徽合肥230026

出　　处：《物理实验》2018年第11期36-38,共3页Physics Experimentation

摘　　要：自制三线摆,检测了鸡蛋的生熟程度.生鸡蛋摆动时周期迅速衰减,统计鸡蛋能够稳定摆动的周期可以敏感地判断鸡蛋的生熟程度.周期衰减来源于蛋清、蛋黄等液体之间及其与蛋壳之间的摩擦力引起的阻力矩.A self-made three-wire pendulum was set up,and the cooked degree of eggs was studied.It was found that the swing period of the raw eggs tended to damp rapidly.The cooked degree of eggs could be sensitively judged by the number of period of steady swing.The damping resulted from the moment of resistance that came from the friction of the egg white and yolk with the egg shell.

关 键 词：鸡蛋 煮熟程度 三线摆 周期衰减 转动惯量 阻力矩 

分 类 号：O313.3[理学—一般力学与力学基础]