基于位置敏感器件的杨氏模量测量

doi:10.14139/i.cnki.cn22-1228.2024.02.014

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摘要

利用位置敏感器件将经典的拉伸法测杨氏模量中金属丝的微小伸长量转换成电压信号变化，再由放大电路放大后，经过数据采集卡接入计算机进行实时数据采集，实现了杨氏模量的数字化测量。实验运用了现代科技测量的新器件、新技术，将硬件和软件在传统物理实验上进行了融合，实验数据处理设计了代表性的最小二乘法线性拟合和逐差法进行处理，测量结果可靠，可作为一个典型的综合性物理实验进行教学推广和使用。

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	岳伊帆
	胡亚华
	李俊成
	孟劲舟
	马玉彬
	张　敏
	桂　兆

关键词: 位置敏感器件杨氏模量最小二乘法逐差法

Abstract:

In the Young's modulus experiment by classical tensile method,a position sensitive device is used toconvert the tiny elongation of the metal wire to the change of voltage signal.The voltage signal is amplifed bythe amplifier circuit ,and sent to the computer for real-time data acquisition with the data acquisition card , thenthe digital measurement of Young's modulus is realized.The new devices and technologies of modem seientiieand technological measurement are used,and the hardware and software in traditional physics experiments areintegratedl, and representative least square linear fitting and suecessive difference method for experimental dataprocessing are designed in this experiment,The measurement results are reliable and the experiment can beused as a typical comprehensive physics experiment for teaching promotion.

Key words: position-sensitive devices Young's modulus least squares linear fiting suceessive differenee method

发布日期: 2024-04-25

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O 482.1

引用本文:

岳伊帆 , 胡亚华 , 李俊成 , 孟劲舟 , 马玉彬 , 张　敏 , 桂　兆 . 基于位置敏感器件的杨氏模量测量 [J]. 大学物理实验, 2024, 37(2): 65-69.
YUE Yifan, HU Yahua, Ll Juncheng, MENG Jinzhou, MA Yubin, ZHANG Min, GUl Zhao. Measurements of Young's Modulus Based on Position-Sensitive Devices . Physical Experiment of College, 2024, 37(2): 65-69.

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http://dawushiyan.jlict.edu.cn/CN/10.14139/i.cnki.cn22-1228.2024.02.014 或 http://dawushiyan.jlict.edu.cn/CN/Y2024/V37/I2/65

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