Piezoresistance Response of Manganin Foils: Experiments and Analysis
The objective of the present work was to understand the response of the manganin foil gauges,1 oriented parallel and perpendicular to the wave front, in shock wave experiments. We carried out experiments in which the gauges were subjected to well characterized stress waves up to 100 kbar to obtain the gauge response on impact loading and to determine the hysteresis effect on unloading. We then modeled the experimental results using the theoretical model developed earlier.2, 3 A brief summary of the experimental and theoretical results is presented in this paper.
KeywordsShock Front Resistance Change Hysteresis Effect Bhabha Atomic Research Projectile Velocity
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- 1.The term “gauge” here refers to the piezoresistance foil only and the two are used synonymously.Google Scholar
- 3.Satish C. Gupta and Y. M. Gupta (unpublished).Google Scholar
- 5.These foils were provided to us by SRI International (courtesy of Mr. D.D. Keough).Google Scholar
- 7.Vistal is the trademark of Coors for polycrystalline A12O3 and is a replacement for Lucalox manufactured by General Electric.Google Scholar