CALIBRATION OF EDM'S FOR PRECISION MEASUREMENT

The calibration of a HP 3800B distance meter yields two kinds of data. The first is the instrument-reflector constant which must be applied to each measurement. The second is the nonlinear sinusoidal error curve, which repeats itself each 10 m and which must be accounted for in order to maintain high precision for short lines. Application of the results to a small quadrilateral observed in order to monitor fault slippage yields a standard error of plus or minus 0.0007 m after adjustment. The average length of the sides is 180 m. The standard error of the measurements is about 4 ppm of the average length of the sides. /Author/

• Corporate Authors:

  American Congress on Surveying and Mapping

  Woodward Building, Room 430, 733 15th Street, N W
  Washington, DC  United States  20005
• Authors:
  • Moffitt, F H
• Publication Date: 1975-6

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 147-154
• Serial:
  • Surveying and Mapping
  • Volume: 35
  • Issue Number: 2
  • Publisher: American Congress on Surveying and Mapping

Subject/Index Terms

• TRT Terms: Calibration; Distance measuring equipment; Errors; Faults; Measurement; Measuring instruments
• Uncontrolled Terms: Slippage
• Old TRIS Terms: Fault zones
• Subject Areas: Design; Highways;

Filing Info

• Accession Number: 00125393
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 18 1975 12:00AM