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| 基于光纤传感技术的金属线胀系数非接触测量 | |
| 引用本文： | 俞世钢,潘日敏,许富洋. 基于光纤传感技术的金属线胀系数非接触测量[J]. 传感器与微系统, 2005, 24(2): 66-67 |
| 作者姓名： | 俞世钢 潘日敏 许富洋 |
| 作者单位： | 1. 浙江师范大学,数理学院,浙江,金华,321004 2. 浙江师范大学,信息与科学技术学院,浙江,金华,321004 |
| 摘 要： | 针对传统金属线胀系数测试方法存在的缺陷,介绍一种新颖的金属线胀系数实时非接触测量方法。该方法是利用反射式光纤位移传感器输出特性曲线的线性区实现微位移测量的原理,从而实现对金属线胀系数的测量,实验给出了测试结果:黄铜棒的线胀系数为 18. 81×10-6 /℃,铁棒的线胀系数为11. 69×10-6 /℃。该方法无论是操作过程还是测量精度都优于传统测量方法。 |
| 关 键 词： | 光纤位移传感器 线胀系数 非接触测量 |
| 文章编号： | 1000-9787(2005)02-0066-02 |
| 修稿时间： | 2004-08-20 |
Non-contact measurement of linear expansion coefficient of metal based on optical fiber technology |
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| YU Shi-gang,PAN Ri-min,XU Fu-yang. Non-contact measurement of linear expansion coefficient of metal based on optical fiber technology[J]. Transducer and Microsystem Technology, 2005, 24(2): 66-67 | |
| Authors: | YU Shi-gang PAN Ri-min XU Fu-yang |
| Abstract: | A novel method for non-contact measurement of the linear expansion coefficient of metal is presented in view of shortcoming in conventional methods.Because it has linear output response curve to detect micro-displacement,the linear expansion coefficient of metal can be measured by means of this optical fiber displacement sensor.Test results are demonstrated experimentally.The linear expansion coefficient of Cu is 18.81×10~(-6)/℃,Fe is 11.69×10~(-6)/℃.Results show that this method is better than conventional one for operation and measuring precision. |
| Keywords: | optical fiber displacement sensor linear expansion coefficient non-contact measurement |
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