SHORT-RANGE EDM: BIG BOOST FOR SURVEYORS

SHORT-RANGE-UNDER 2 KM- ELECTRONIC-DISTANCE MEASURING (EDM) DEVICES HAVE BEEN AVAILABLE TO SURVEYORS DURING THE PAST YEAR. IN 1963, THE DEVELOPMENT OF GALLIUM ARSENIDE DIODE-A SOLID-STATE DEVICE FOR GENERATING INFRARED RADIATION-MADE POSSIBLE THE PRODUCTION OF LOW COST, SHORT- RANGE EDM EQUIPMENT. THE ADVANTAGES ARE (1) TIME SAVINGS - TAKES LESS TIME TO DO CONTROL AND STAKEOUT WORK, (2) LABOR SAVINGS - ONLY 2 MEN REQUIRED FOR A CREW; (3) EASIER TO USE, AND (4) BETTER ACCURACY. THE DISADVANTAGES ARE (1) COST, (2) WEIGHT, AND (3) ACCURACY DEPENDS ON THE DISTANCE BEING MEASURED.

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00202969
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 24 1972 12:00AM