Calibration of Graticules to High Accuracy.

Abstract

A technique for calibrating graticules (or stage micrometers) to high accuracy (+ or - 0.1 micrometers) is described. The lines were sensed photo-electrically and the distance between lines was measured with a laser interferometer. The accuracy is limited mainly by the quality of the graticule lines but for a graticule with long well-defined lines the uncertainty of measurement was 0.04 micrometers. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1977
Accession Number
ADA042566

Entities

People

  • D. B. Prowse

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Calibration
  • Computer Programs
  • Department Of Defense
  • Detectors
  • Inertial Navigation Systems
  • Interferometers
  • Lasers
  • Light Sources
  • Materials
  • Measurement
  • Measuring Instruments
  • Micrometers
  • Schematic Diagrams
  • Standards
  • Translations
  • Uncertainty

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Pulsed Power and Plasma Physics.
  • Solar Photovoltaics and Thermoelectric Devices.

Technology Areas

  • Directed Energy
  • Directed Energy - Lasers