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A conversion of Wheatstone bridge to current-loop signal conditioning for strain gages

Author: Karl F Anderson; NASA Dryden Flight Research Center.; United States. National Aeronautics and Space Administration. Scientific and Technical Information Program,; United States. National Aeronautics and Space Administration,
Publisher: Edwards, California : National Aeronautics and Space Administration, Dryden Flight Research Center, April 1995.
Series: NASA technical memorandum, 104309.
Edition/Format:   eBook : Document : National government publication : EnglishView all editions and formats
Summary:
Current loop circuitry replaced Wheatstone bridge circuitry to signal-condition strain gage transducers in more than 350 data channels for two different test programs at NASA Dryden Flight Research Center. The uncorrected test data from current loop circuitry had a lower noise level than data from comparable Wheatstone bridge circuitry, were linear with respect to gage-resistance change, and were uninfluenced by  Read more...
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Additional Physical Format: Print version:
Conversion of wheatstone bridge to current-loop signal conditioning for strain gages ... nasa-tm-104309 ... oct. 20, 1997
(OCoLC)226268666
Microfiche version: Anderson, Karl F.
Conversion of wheatstone bridge to current-loop signal conditioning for strain gages
(OCoLC)39777446
Material Type: Document, Government publication, National government publication, Internet resource
Document Type: Internet Resource, Computer File
All Authors / Contributors: Karl F Anderson; NASA Dryden Flight Research Center.; United States. National Aeronautics and Space Administration. Scientific and Technical Information Program,; United States. National Aeronautics and Space Administration,
OCLC Number: 703665252
Notes: Title from title screen (viewed March 30, 2016).
"April 1995."
"Performing organization: NASA Dryden Flight Research Center, Edwards, California"--Report documentation page.
Description: 1 online resource (13 pages) : illustrations.
Series Title: NASA technical memorandum, 104309.
Responsibility: Karl F. Anderson.

Abstract:

Current loop circuitry replaced Wheatstone bridge circuitry to signal-condition strain gage transducers in more than 350 data channels for two different test programs at NASA Dryden Flight Research Center. The uncorrected test data from current loop circuitry had a lower noise level than data from comparable Wheatstone bridge circuitry, were linear with respect to gage-resistance change, and were uninfluenced by varying lead-wire resistance. The current loop channels were easier for the technicians to set up, verify, and operate than equivalent Wheatstone bridge channels. Design choices and circuit details are presented in this paper in addition to operational experience.

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