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Measurement of the temperature coefficient of ratio transformers (1993)

Briggs, Matthew E. ; Gammon, Robert W. ; Shaumeyer, J. N.

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Publication Date: 2019-07-13

Description: We 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.

Keywords: ELECTRONICS AND ELECTRICAL ENGINEERING

Type: Review of Scientific Instruments (ISSN 0034-6748); 64; 3; p. 756-759.

Format: text

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