NEW LASER APPLICATIONS IN GEODETIC AND ENGINEERING SURVEYS
A TEAM FROM THE UNIVERSITY OF NEW BRUNSWICK HAS DEVELOPED NEW INSTRUMENTS FOR PRECISION ALIGNMENT SURVEYS AND FOR ENGINEERING AND GEODETIC LEVELING. PROTOTYPES OF INTEGRATING CENTERING DETECTORS HAVE BEEN DESIGNED AND CONSTRUCTED WHICH ALLOW ALIGNMENT OF LASER BEAMS WITH AN ACCURACY OF 0.2 SEC OF ARC IN A TURBULENT ATMOSPHERE OVER DISTANCES OF A FEW KILOMETERS. TWO TYPES OF LASER PLUMMETS HAVE BEEN DEVELOPED TO SET A LASER BEAM IN A VERTICAL DIRECTION WITH AN ACCURACY OF 0.5 SEC OF AVC OR BETTER. A HE-NE LASER HAS BEEN ADAPTED TO A CONVENTIONAL SELF-ALIGNING LEVEL GIVING A STANDARD ERROR OF 0.7 MM/KM IN DETERMINATION OF A DIFFERENCE IN ELEVATION. A NEW TYPE OF LASER LEVEL HAS BEEN CONSTRUCTED WHICH GIVES NEW POSSIBILITIES FOR PRECISION LEVELING. /AUTHOR/
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/1559128X
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Supplemental Notes:
- Vol 11, No 2, PP 319-326
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Authors:
- Chrzanowski, A
- Ahmed, F
- Kurz, B
- Publication Date: 1972-2
Media Info
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Serial:
- Applied Optics
- Publisher: Optical Society of America, Incorporated
- ISSN: 1559-128X
- EISSN: 2155-3165
- Serial URL: http://www.opticsinfobase.org/ao/home.cfm
Subject/Index Terms
- TRT Terms: Alignment; Detectors; Engineering; Geodetic surveying; Lasers; Leveling; Positioning; Surveys
- Old TRIS Terms: Engineering surveys; First order surveys
- Subject Areas: Construction; Highways;
Filing Info
- Accession Number: 00215499
- Record Type: Publication
- Files: TRIS
- Created Date: Apr 10 1972 12:00AM