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measurement of the temperature coefficient of ratio transformersWe have measured the temperature coefficient of the output of several ratio transformers at ratios near 0.500,000 using an ac bridge and a dual-phase, lock-in amplifier. The two orthogonal output components were each resolved to +/- ppb of the bridge drive signal. The results for three commercial ratio transformers between 20 and 50 C range from 0.5 to 100 ppb/K for the signal component in phase with the bridge drive, and from 4 to 300 ppb/K for the quadrature component.
Document ID
19930048774
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Briggs, Matthew E.
(NASA Lewis Research Center Cleveland, OH, United States)
Gammon, Robert W.
(NASA Lewis Research Center Cleveland, OH, United States)
Shaumeyer, J. N.
(Maryland Univ. College Park, United States)
Date Acquired
August 16, 2013
Publication Date
March 1, 1993
Publication Information
Publication: Review of Scientific Instruments
Volume: 64
Issue: 3
ISSN: 0034-6748
Subject Category
ELECTRONICS AND ELECTRICAL ENGINEERING
Funding Number(s)
CONTRACT_GRANT: NAS3-25370
Distribution Limits
Public
Copyright
Other