PRECISION IN ELECTRONIC DISTANCE MEASURING

THE EVENTS LEADING UP TO THE DEVELOPMENT OF ELECTRONIC DISTANCE MEASURING (EDM) EQUIPMENT ARE BRIEFLY REVIEWED, PARTICULARLY FOR THE GEODIMETER AND THE TELLUROMETER THE PRIMARY PURPOSE OF THE ARTICLE IS TO DISCUSS THE SOURCE OF SOME ERRORS WHICH OCCUR IN ELECTRONIC DISTANCE MEASUREMENTS. FOR INSTANCE FREQUENCY DRIFT, CALIBRATION AND INSTRUMENT CONSTANT, AND GROUND SWING ERROR DETECTION ARE RECOMMENDED PRACTICES FOR MAINTAINING HIGH PRECISION RESULTS. OTHER ERROR SOURCES GIVE THE BASIC FORMULAS FOR (1) INACCURATE ELEVATION DIFFERENCES, (2) REFRACTIVE INDEXES, (3) INSTRUMENTS USING LIGHT WAVES AND INFRARED, (4) INSTRUMENTS USING MICROWAVES, AND (5) GEOMETRIC REDUCTION OF ELECTRONIC MEASUREMENTS.

  • Supplemental Notes:
    • 1 APP
  • Authors:
    • Meade, B K
  • Publication Date: 1972-3

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 69
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00202970
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 17 1972 12:00AM