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A Deformable Smart Skin for Continuous Sensing Based on Electrical Impedance Tomography.

Francesco Visentin1,2, Paolo Fiorini3, Kenji Suzuki4

  • 1Department of Intelligent Interaction Technologies, University of Tsukuba, Tsukuba 305-8573, Japan. francesco@ai.iit.tsukuba.ac.jp.

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|November 18, 2016
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Summary

This study introduces a low-cost, flexible smart skin sensor using Electrical Impedance Tomography. This adaptable artificial skin accurately detects applied forces on various surfaces for robotics and electronics.

Keywords:
adaptabledeformableelectrical impedance tomographywearable sensor

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Area of Science:

  • Robotics
  • Sensor Technology
  • Electrical Engineering

Background:

  • Traditional sensors often lack flexibility, hindering applications in deformable systems.
  • Stiff components in sensors limit adaptability and integration with complex geometries.
  • Developing cost-effective, adaptable sensing solutions is crucial for advanced robotics and electronics.

Purpose of the Study:

  • To present a novel, low-cost, and flexible pressure sensor system.
  • To demonstrate the sensor's adaptability for stiff and deformable media.
  • To explore applications in robotics, rehabilitation, and consumer electronics.

Main Methods:

  • Utilized Electrical Impedance Tomography (EIT) for sensing capabilities.
  • Employed a material with resistivity changes proportional to applied forces.
  • Reconstructed conductivity maps to infer internal structure and localize forces.

Main Results:

  • Successfully tested the artificial skin on flat and curved surfaces.
  • Demonstrated accurate detection of single-point and multi-point forces.
  • Showcased the ability to detect changes in underlying geometry.

Conclusions:

  • The developed smart skin sensor is a promising, low-cost, and flexible solution.
  • The EIT-based approach enables effective force localization on deformable surfaces.
  • The sensor technology opens new avenues for integration into various robotic systems.