LB/TS Optical Blast Measurement.

Abstract

A laser beam system for measuring airshock time of arrival (TOA) was designed and developed for use in the Defense Special Weapons Agency's (DSWA's) Large Blast and Thermal Simulator (LB/TS). A limited array of four laser bearns was installed and exercised in three test shots in LB/TS. The shock TOA was measured with high precision (0.5 micros). The shock overpressure was computed from the shock TOA measurements and compared with measurements using pressure rakes. The laser system proved highly reliable and required little maintenance and preparation time for each test. A multiple beam array can be used to provide not only accurate measurements of shock wave TOA but also accurate shock front pressure.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1998
Accession Number
ADA342252

Entities

People

  • David J. Michalski
  • Herman J. Carpenter

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Amplifiers
  • Blast Waves
  • Corporations
  • Curvature
  • Digital Data
  • Gages
  • Laser Beams
  • Lasers
  • Measurement
  • Military Research
  • Pressure Gages
  • Pressure Measurement
  • Recording Systems
  • Security
  • Standards
  • Static Pressure

Readers

  • Explosive Engineering.
  • Fluid Dynamics.
  • Radar Systems Engineering.

Technology Areas

  • Directed Energy