Influence of vertical refraction on the precission of laser measurement in underground mines

http://jmes.humg.edu.vn/en/archives?article=115
  • Affiliations:

    1 Trường Đại học Mỏ - Địa chất

  • Received: 26th-May-2012
  • Revised: 14th-July-2012
  • Accepted: 30th-July-2012
  • Online: 30th-July-2012
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Abstract:

Abstract. When laser beam passes from a medium of one density into a medium of a different density, the rays change in direction (bend). The change in direction is called refraction. Since sight lines are light rays, they are refracted, or bent, by changes in the underground mining atmosphere, causing errors in angular, distance and elevation measurement. The influence of vertical refraction on the precission of laser measurement in underground mines is discussed

How to Cite
Vo, D.Ngoc 2012. Influence of vertical refraction on the precission of laser measurement in underground mines (in Vietnamese). Journal of Mining and Earth Sciences. 39 (Jul, 2012).