Touch, press and stroke: a soft capacitive sensor skin

Soft sensors that can discriminate shear and normal force could help provide machines the fine control desirable for safe and effective physical interactions with people. A capacitive sensor is made for this purpose, composed of patterned elastomer and containing both fixed and sliding pillars that...

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Bibliographic Details
Published inarXiv.org
Main Authors Sarwar, Mirza S, Ishizaki, Ryusuke, Morton, Kieran, Preston, Claire, Nguyen, Tan, Xu, Fan, Dupont, Bertille, Hogarth, Leanna, Yoshiike, Takahide, Mirabbasi, Shahriar, Madden, John D W
Format Paper
LanguageEnglish
Published Ithaca Cornell University Library, arXiv.org 06.07.2023
Subjects
Automation
Elastomers
Fingers
Humanoid
Manufacturing engineering
Robotics
Shear
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Summary:Soft sensors that can discriminate shear and normal force could help provide machines the fine control desirable for safe and effective physical interactions with people. A capacitive sensor is made for this purpose, composed of patterned elastomer and containing both fixed and sliding pillars that allow the sensor to deform and buckle, much like skin itself. The sensor differentiates between simultaneously applied pressure and shear. In addition, finger proximity is detectable up to 15 mm, with a pressure and shear sensitivity of 1 kPa and a displacement resolution of 50 \(\mu\)m. The operation is demonstrated on a simple gripper holding a cup. The combination of features and the straightforward fabrication method make this sensor a candidate for implementation as a sensing skin for humanoid robotics applications.
ISSN:2331-8422