用光纤位移传感器测量金属丝的杨氏模量  

Measuring the Young Modulus of Metallic Thread by Optical Fiber Displacement Sensor

作　　者：吕秀品[1] 朱维安[1] 许健聪[1] 许均彬[1] 

机构地区：[1]汕头大学物理系,广东汕头515063

出　　处：《汕头大学学报（自然科学版）》2006年第1期18-22,共5页Journal of Shantou University：Natural Science Edition

基　　金：汕头大学教学改革研究资助项目(No:130-101015)

摘　　要：用光纤位移传感器对金属丝的杨氏模量进行测量,用最小二乘法拟合直线方程,用逐差法处理实验数据,得出实验结果.与光杠杆法相比,该方法测量误差小,准确度高.Young modulus of metallic thread is measured by using optical fiber displacement sensor. A fitting formula is given through least square method. The dates are deal with by the method of successive minus. Compared with the method of light lever, the measuring result is more precise, and the error is smaller.

关 键 词：杨氏模量 传感器 位移 

分 类 号：O344.1[理学—固体力学]