大学物理 ›› 2014, Vol. 33 ›› Issue (2): 45-45.

• 著者文摘 • 上一篇    下一篇

基于巨磁电阻效应的杨氏模量测量装置

梁志强[1] 庄明伟[2] 韩立铭[1,3] 尹妍妍[1]   

  1. [1]山东交通学院理学院,山东济南250023 [2]厦门大学信息科学与技术学院电子工程系,福建厦门361005 [3]中国汉嘉设计集团股份有限公司山东分公司,山东济南250014
  • 出版日期:2014-02-25 发布日期:2014-02-20

The equipment of Young' s modulus measurement with GMR sensor

  • Online:2014-02-25 Published:2014-02-20

摘要: 利用巨磁电阻传感器、磁钢片及电位差计组成的实验装置,可精确测量微小长度变化量.将该装置应用于杨氏模量实验并与光杠杆测量方法比较可知,应用巨磁电阻传感器的测量方法简单,测量过程便捷,测量精度较高.

关键词: 巨磁电阻传感器, 电位差计, 微小位移, 杨氏模量

Abstract: The experimental installation which is composed of giant magnetic resistor sensor,with a potentiometer and tow piece of little magnetic steels,can be used to measure accurately a mini-displacement in physical exper- iments. It is applied to measure Young' s modulus and the experimental result indicates that the way of measurement with giant magnetic resistor sensor is much simpler and more precise compared with the optical lever method.

Key words: giant magnetic resistor sensor, potentiometer, mini-displacement, Young' s modulus

中图分类号: 

  • O441.5