LEAK DETECTION OF LARGE PRESSURIZED SPHERICAL BALLOONS.

Abstract

The report summarizes an effort to locate and develop a leak detection system suitable for use on large pressurized balloons for the Air Force Cambridge Research Laboratories. A survey of various types of leak detectors and detection techniques was conducted to determine the most suitable method for detecting and locating leaks on pressurized spherical balloons 46 feet or more in diameter. As a result of the survey and appraisal testing, it was concluded that a thermal conductivity detector with a wide sweep wand could most readily detect and locate holes as small as 1/16 inch on large balloons filled with helium under an internal pressure of 1.5 inches of water. A leak detection system was designed and built, utilizing a modified commercially available thermal conductivity leak detector. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1968
Accession Number
AD0670886

Entities

People

  • Allen R. Davidson Jr.

Tags

DTIC Thesaurus Topics

  • Air Force
  • Conductivity
  • Detection
  • Detectors
  • Diameters
  • Internal Pressure
  • Leak Detectors
  • Physical Properties
  • Thermal Conductivity
  • Toxic Agent Sensors
  • Warning Systems

Readers

  • Aerospace Test and Evaluation
  • Materials Science
  • Sensor Fusion and Tracking Systems.