Tests on Pneumatically Powered Precision Force Generators.

Abstract

An assessment has been made of the performance of two different types of pneumatic force generator, covering forces up to a 100 kN, with a view to their use in balance calibrations in the RAE 5m wind tunnel. This report describes tests performed on the force generators using a precision pneumatic control system firstly in conjunction with a static weigh beam test rig, followed by a series of tests to check the overall accuracy of performance against the 'dead-weight' Force Standard Machines at NPL Teddington. It has been shown that force generators using a rolling diaphragm seal can produce forces to an accuracy within 0.01% of maximum output assuming a linear calibration. Individual values of force output could be repeated to 0.003% of maximum output when checked against a simple weigh beam under fixed experimental conditions. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 18, 1979
Accession Number
ADA085862

Entities

People

  • R. D. Law

Organizations

  • Royal Aircraft Establishment

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Air Pressure
  • Control Systems
  • Cyclic Tests
  • Data Analysis
  • Gages
  • Generators
  • Machines
  • Materials
  • Precision
  • Pressure Gages
  • Pressure Regulators
  • Regulators
  • Structural Loads
  • Test Facilities
  • Transducers
  • Wind Tunnels

Readers

  • Computational Modeling and Simulation
  • Electrical Engineering
  • Fluid Dynamics.