Accession Number:

ADA142139

Title:

Some Aspects of the Compatibility between Strain Guage Readout Equipment and Multi-Component Wind Tunnel Balances.

Descriptive Note:

Aerodynamics note,

Corporate Author:

AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA)

Personal Author(s):

Report Date:

1983-07-01

Pagination or Media Count:

28.0

Abstract:

In multi-component strain gauge wind tunnel balances it is common practice to use four arm bridges of gauges arranged to produce an output from one load component and not from other load components which also cause significant strains under the gauges. This system relies on the fact that there is fundamentally one output-producing pattern of strains and three non-output-producing patterns. It is shown that interactions arise between the various strain patterns and that these interactions, and hence the balance calibration equations, are dependent on the nature of the readout equipment used. Specific precautions which must be observed to obtain 0.01 accuracy levels are investigated. Author

Subject Categories:

  • Aerodynamics
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE