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Polymer-waveguide-based flexible tactile sensor array for dynamic response.

Sungryul Yun¹, Suntak Park, Bongje Park

¹Transparent Transducer and UX Creative Research Center, Electronics and Telecommunications Research Institute, Daejeon, Korea, 305-700.

Advanced Materials (Deerfield Beach, Fla.)

|April 9, 2014

Summary

A novel transparent, flexible force sensor array was developed for tactile sensing on curved surfaces. This thin-film sensor offers localized force detection, multi-point recognition, and robust performance under bending.

Keywords:

dynamic responses force sensors multiple-point recognition polymer waveguides thin films

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Measurement of Vibration Detection Threshold and Tactile Spatial Acuity in Human Subjects

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Published on: September 1, 2016

Area of Science:

Materials Science
Sensor Technology
Optoelectronics

Background:

Tactile sensing is crucial for robotics and human-computer interaction.
Existing sensors often lack flexibility, transparency, or robustness for curvilinear applications.

Purpose of the Study:

To propose a polymer-waveguide-based transparent and flexible force sensor array.
To demonstrate its suitability for tactile sensing on curvilinear surfaces.

Main Methods:

Fabrication of a thin-film polymer-waveguide sensor array.
Characterization of sensor performance including force sensitivity, spatial resolution, bending robustness, and response speed.

Main Results:

The sensor array exhibits a thin-film architecture (< 150 μm).
It achieves localized force sensing (0-3 N) with 27 sensing points.
Demonstrates bending robustness (10.8% degradation at R = 1.5 mm) and a fast response (> 16 Hz).

Conclusions:

The proposed sensor array meets key requirements for tactile sensing on curved surfaces.
It offers a promising solution for advanced tactile interfaces.