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.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/10480594
• Authors:
  • Dallaire, E E
• Publication Date: 1971-2

Media Info

• Features: Figures; Tables;
• Pagination: p. 69-74
• Serial:
  • Civil Engineering
  • Volume: 41
  • Issue Number: 2
  • Publisher: American Society of Civil Engineers
  • ISSN: 0885-7024
  • Serial URL: http://www.pubs.asce.org/ceonline/newce/html

Subject/Index Terms

• TRT Terms: Accuracy; Costs; Distance measuring equipment; Electronic equipment; Productivity; Surveying instruments
• Uncontrolled Terms: Time savings
• Subject Areas: Design; Finance; Highways;

Filing Info

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