SAMPLING PROBE FOR INSTANTANEOUS MASS SPECTROMETRIC ANALYSIS OF RAREFIED ENTHALPY FLOW

Abstract

An aerodynamically shaped probe was developed for instantaneous mass spectrometric analyses of gas samples taken from low density, high enthalpy, hypersonic flows. The requisite .00001 torr operating pressure for a quadrupole mass spectrometer mounted in the water-cooled probe was established and maintained by a liquid-hydrogen cryopump. During an initial series of 5-min tests, the detected composition of an arc-heated airflow with a stagnation condition of approximately 10 atm at 3000K agreed well with a nonequilibrium flow expansion calculation.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1969
Accession Number
AD0686405

Entities

People

  • R. E. Dix

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Chemical Reactions
  • Detectors
  • Electron Energy
  • Electrons
  • Energy
  • Enthalpy
  • Flow
  • Gas Flow
  • Governments
  • Mass Spectrometers
  • Measurement
  • Test Facilities
  • Vacuum
  • Vacuum Chambers
  • Wind Tunnels

Fields of Study

  • Chemistry
  • Physics

Readers

  • Combustion and Flow Dynamics.
  • Combustion science or combustion engineering.
  • Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flight
  • Hypersonics - Hypersonic Flow