J4 ›› 2012, Vol. 11 ›› Issue (4): 28-31.

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On Experimental Methods Measuring Linear Expansion Coefficient of Metal

This paper presents several methods measuring linear expansion coefficient and micrometer through the use of leverage,interference principle or spiral interferometry measurement principle. We can select appropriate method according to experimental equipment and measuring accuracy.   

  1. College of Engineering, Dali University, Dali, Yunnan 671003, China
  • Received:2010-11-16 Revised:2011-03-29 Online:2012-04-15 Published:2012-04-15

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Abstract:

This paper presents several methods measuring linear expansion coefficient and micrometer through the use of leverage,interference principle or spiral interferometry measurement principle. We can select appropriate method according to experimental equipment and measuring accuracy.

Key words: linear expansion coefficient, measurement methods, leverage, interference principle, screw micrometer principle

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