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Very Thin, Macroscale, Flexible, Tactile Pressure Sensor Sheet.

Seiji Wakabayashi¹, Takayuki Arie¹, Seiji Akita¹

¹Department of Physics and Electronics, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.

|July 28, 2020

Summary

This summary is machine-generated.

Researchers developed a thin, flexible tactile pressure sensor array using laser-induced graphene. This economical sensor enables detailed pressure mapping on various objects, even under bending conditions.

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Area of Science:

Materials Science
Robotics
Artificial Intelligence

Background:

Data collection for AI and deep learning requires sensors that conform to object shapes without alteration.
Mechanically flexible sensor sheets offer a solution for unobtrusive data acquisition.

Purpose of the Study:

To propose and fabricate a thin, macroscale, flexible, tactile pressure sensor array.
To demonstrate its utility in applications requiring economical and adaptable sensing solutions.

Main Methods:

Fabrication involved laser-induced graphene, a transfer process, and printing.
Characterization included uniformity, sensitivity, and repeatability tests.
Proof-of-concept demonstrated object mapping and pressure distribution analysis under bending.

Main Results:

A stable, reliable, thin (∼300 μm), flexible tactile pressure sensor was realized.
The sensor array exhibited a detectable pressure range of tens to hundreds of kPa.
Successful demonstration of uniformity, sensitivity, repeatability, and pressure mapping on objects under bending.

Conclusions:

The proposed sensor fabrication process is simple and economical.
The sensor has potential for macroscale, thin, flexible tactile pressure sensor sheets.
This technology can support data collection in AI and deep learning applications.