多光束干涉法精确测量金属线胀系数  

A Way of Multiple-Beam Interference to Measure Metal Linear Expansion Coefficient Precisely

作　　者：史宏凯[1] 史宏亮[2] 胡强[3] 谢文波[1] 王跃[1] 

机构地区：[1]西南大学物理科学与技术学院,重庆400715 [2]兰炼第一中学,兰州730060 [3]中国科学院近代物理研究所,兰州730000

出　　处：《西南师范大学学报（自然科学版）》2009年第2期193-196,共4页Journal of Southwest China Normal University(Natural Science Edition)

摘　　要：根据光学等倾干涉的原理,设计了一种新的测量金属线胀系数的装置与方法.自行设计了测量金属线胀系数的多光束干涉装置.利用多光束干涉产生的同心圆环的吞吐量精确测量了黄铜的线胀系数,相对误差为0.07%.并分析了多光束干涉法测金属线胀系数的优点.Based on the principle of optical equal inclination interference, a new measuring device and method of metal＇s linear expansion coefficient have been designed. A multiple-beam interference device for measuring metallic linear expansion coefficient has been designed. Moreover, with the concentric rings＇ throughout that produced by multi-beam interference, measuring the linear expansion coefficient of brass, the relative error of linear expansion coefficient might be 0.07 %. Finally the advantage of the method that multiple-beam interference for measuring metallic linear expansion coefficient has been amalyzed.

关 键 词：多光束干涉 线胀系数 等顷干涉 

分 类 号：O4-3[理学—物理]