Interlaboratory Study (ILS) on the Standard Test Method for Measuring Grid Line Slope (GLS) in Aerospace Transparencies

Abstract

When an observer looks through an aerospace transparency, relative optical distortion may result, specifically in thick, highly angled, multi-layered plastic parts. Distortion occurs in all transparencies but is especially critical to aerospace applications such as combat and commercial aircraft windscreens, canopies and cabin windows. This is especially true during certain operations such as takeoff, landing and aerial refueling. It is critical to be able to quantify optical distortion for procurement activities. The test method covers apparatus and procedures that are suitable for measuring the grid line slope (GLS) of transparent parts including those that are small or large, thin or thick, flat or curved, or already installed. This ILS determined the test method's measurement precision.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2001
Accession Number
ADA392444

Entities

People

  • Alan R. Pinkus
  • Harry L. Task

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Aircrafts
  • Commercial Aircraft
  • Data Sets
  • Distortion
  • Governments
  • Measurement
  • Military Research
  • Photographs
  • Precision
  • Refueling
  • Refueling In Flight
  • Standards
  • Statistical Analysis
  • Test Methods
  • Transparencies

Fields of Study

  • Physics

Readers

  • Geodesy
  • Human-Computer Interaction (HCI).
  • Structural Dynamics.

Technology Areas

  • Space