Characterization of electrical interferences for ground reaction sensor cluster

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Publication Type pre-print
School or College College of Engineering
Department Electrical & Computer Engineering
Creator Mastrangelo, Carlos H.
Other Author Guo, Qingbo; Suster, Michael A.; Surapaneni, Rajesh; Young, Darrin J.
Title Characterization of electrical interferences for ground reaction sensor cluster
Date 2012-01-01
Description This paper presents the characterization of electrical interferences for a high-resolution error-correcting biomechanical ground reaction sensor cluster (GRSC), developed for improving inertial measurement unit (IMU) position sensing accuracy. The GRSC is composed of 13 x 13 sensing nodes, which can measure dynamic ground forces, shear strains, and sole deformation associated with a ground locomotion gait. The integrated sensing electronics consist of a front-end multiplexer that can sequentially connect individual sensing nodes in a GRSC to a capacitance-to-voltage converter followed by an ADC, digital control unit, and driving circuitry to interrogate the GRSC. The characterization data shows that the single-ended (z-axis pressure) mode exhibits a large output interference due to the un-matched interconnect traces design, thus limiting sensing resolution to 8 bits. The differential mode (x/y-axes shear strain) shows a reduced interference effect, achieving a 10-bit resolution.
Type Text
Publisher Institute of Electrical and Electronics Engineers (IEEE)
Language eng
Bibliographic Citation Guo, Q., Suster, M. A., Surapaneni, R., Mastrangelo, C. H., & Young, D. J. (2012). Characterization of electrical interferences for ground reaction sensor cluster. Proceedings of IEEE Sensors, no. 6411379.
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Identifier uspace,18197
ARK ark:/87278/s6rn3sn2
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Date Created 2013-03-05
Date Modified 2021-05-06
ID 708330
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