A Data Acquisition Parallel Bus for Wind Tunnels at ARL (Aeronautical Research Laboratory).

Abstract

The data acquisition system used by the Subsonic Wind Tunnel at Aeronautical Research Laboratory, Melbourne, was designed in 1972. Tunnel productivity was further improved during 1982 with the installation of a dedicated computer (PDP11/44) which eliminated the time sharing access with the site's central computer. The dedicated computer also provides real-time processing of data and supports graphical displays for interactive operation with wind tunnel tests. In recent years this dedication minicomputer has become unreliable and the high cost of maintenance has led to its replacement with a micro VAX which is intended to be connected to similiar data gathering equipment to that used in the Subsonic Wind Tunnel. A data bus was developed to provide bi-directional communication between the dedicated master mini computer and the numerous microprocessor slave modules which form the new system. Keywords: Australia; Computer hardware; Computer programming and software. foreign

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1989
Accession Number
ADA218052

Entities

People

  • J. F. Harvey

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Acquisition
  • Clocks
  • Computer Programming
  • Computers
  • Conversion
  • Data Acquisition
  • Data Processing
  • Data Rate
  • Data Transmission
  • Department Of Defense
  • Engineering
  • Microprocessors
  • Midrange Computers
  • Subsonic Wind Tunnels
  • Wind Tunnel Tests
  • Wind Tunnels

Fields of Study

  • Physics

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Fluid Dynamics.