LASER MEASUREMENT FOR TUNNELS

HELIUM NEON LASERS CAN BE APPLIED TO TUNNELING AND UNDERGROUND WORK. METHODS OF MOUNTING THE LASER AND OBTAINING ACCURATE BEAM ALIGNMENTS ARE DISCUSSED. LASERS HAVE BEEN USED IN THE AUTOMATIC CONTROL OF EQUIPMENT, EITHER ON A ROTATING BEAM SYSTEM OR A FAN BEAM ARRANGMENT. BOTH THESE SYSTEMS CAN BE USED WITH AN ARRAY OF DETECTORS ON TUNNELING OR EARTH MOVING MACHINERY TO PROVIDE A FEED-BACK TO CONTROL THEIR ATTITUDE OR DIRECTION. /AUTHOR/

  • Availability:
  • Supplemental Notes:
    • Vol 3, No 4, PP 283-284
  • Authors:
    • Allen, K D
  • Publication Date: 1971-7

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Filing Info

  • Accession Number: 00209501
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 6 1971 12:00AM