The Measurement of Multiple 0.1 - 10 Torr Differential Pressures in Subatmospheric Wind Tunnel Flows

Abstract

A system for measuring multiple 0.1-10 Torr differential pressures has been assembled, tested in the laboratory, and used in actual wind tunnel tests. The system accepts 141 pressure inputs, but can easily be expanded for more inputs. Off-the-shelf items were used, including three 48-port mechanical scanner valves and three capacitance transducers. Equipment, procedures, and results from the laboratory experiments are described in detail. Results from tests on the effects of the scanner valves on overall accuracy and pneumatic lag time at line pressures between 235 and 760 Torr, absolute are of particular interest.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1985
Accession Number
ADA379810

Entities

People

  • Matthew J. Wagner

Organizations

  • Wright Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aeronautical Laboratories
  • Calibration
  • Capacitance
  • Engineering
  • Gages
  • Laboratory Equipment
  • Manometers
  • Measurement
  • Power Supplies
  • Pressure Gages
  • Pressure Measurement
  • Pressure Transducers
  • Research Facilities
  • Static Pressure
  • Transducers
  • Wind Tunnels

Readers

  • Aerospace Test and Evaluation
  • Combustion science or combustion engineering.
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.