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Special Section Technical Briefs

Flexible, Stretchable Skin Sensors for Two-Dimensional Position Tracking in Medical Simulators1

[+] Author and Article Information
Jason Lu, Timothy M. Kowalewski

Department of Mechanical Engineering,
University of Minnesota,
Minneapolis, MN 55455

Accepted and presented at The Design of Medical Devices Conference (DMD2015), April 13-16, 2015, Minneapolis, MN, USA.

Manuscript received March 3, 2015; final manuscript received March 16, 2015; published online April 24, 2015. Editor: Arthur Erdman.

J. Med. Devices 9(2), 020927 (Jun 01, 2015) (3 pages) Paper No: MED-15-1120; doi: 10.1115/1.4030138 History: Received March 03, 2015; Revised March 16, 2015; Online April 24, 2015

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References

Figures

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Fig. 1

Side view of CNT skin sensor

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Fig. 2

(a) PDMS substrate with partial CNT strips shows stretchability, (b) perforated layer detail, (c) brass node clamp, and (d) brass clamp contact node attached to the CNT–PDMS pad

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Fig. 3

(a) Circuit, (b) 1 cm grid test grid, and (c) sensor CNT surface

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Fig. 4

Raw voltage (color) versus x-y contact position; “up” and “right” plots are flipped to illustrate similarity

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Fig. 5

Polynomial surface fit (order 3 × 2) to averaged data in “down” configuration; R2= 0.9956, RMSE = 0.47 mm

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