References
Henry Freynik, et al.; Nickel-Chromiurn Strain Gages for Cryogenic Stress Analysis of Superconducting Structures in High Magnetic Fields; Proc. Of the Seventh Symposium on Engineering Problems in fusion Research; October, 1977.
Charles Wright; Applied Measurements Engineering—How to Design Effective Measurement Systems, Prentice Hall, Englewood Cliffs, NJ, 1995; ISBN 0-13-253477-0.
Bifilar gages are available from both Measurements Group (www.measurementsgroup.com) and BLH (www.blh.com). Bifilar gages are actually two gages stacked one on top of the other and wired in series. The excitation current flows through the lower gage in a clockwise direction and through the upper gage in a counterclockwise direction. This arrangements forces the gage effective area and number of turns to be zero, minimizing the noise level by design.
Inter-8 weave cable from the Perfection Mica Division of Magnetic Shield Corporation, Bensenville, IL. (www.magnetic-shielding.com). Cable comes in a range of AWG sizes and jacketing materials. Electrostatic shielding is also available.
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Editor’s Note: This series is dedicated to Prof. Peter K. Stein, in honor of his distinguished 40 year career as the leading educator in the engineering of measurement systems for test and evaluation. The authors were both privileged to be students of Prof. Stein more years and more data channels ago than they care to remember!
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Shull, L.C., Wright, C.P. Important environments associated with dynamic strain measurements. Exp Tech 26, 51–52 (2002). https://doi.org/10.1111/j.1747-1567.2002.tb00070.x
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DOI: https://doi.org/10.1111/j.1747-1567.2002.tb00070.x