Soft Sensor / ソフトセンサ (2020-)


Soft sensors made of deformable materials, that are capable of sensing touches or gestures, have attracted considerable attention for use in tangible interfaces or soft robotics. However, to achieve multimodal gesture detection with soft sensors, prior studies have combined multiple sensors or utilized complex configurations with multiple wires. To achieve multimodal gesture sensing with a simpler configuration, a novel soft sensor consisting of a conductive foam with a single wire, was proposed in this study. This sensor was named as foamin and utilizes an impedance measurement technique at multiple frequencies called swept-frequency capacitive sensing (SFCS). Additionally, a surface-shielding method was designed for improving the detection performance of the sensor. Several patterns of foamin were implemented to investigate the detection accuracy and three application scenarios based on the sensor were proposed.




[1] Rei Sakura, Changyo Han, Keisuke Watanabe, Ryosuke Yamamura, and Yasuaki Kakehi. 2022. Design of 3D-Printed Soft Sensors for Wire Management and Customized Softness. In CHI Conference on Human Factors in Computing Systems Extended Abstracts (CHI EA '22). Association for Computing Machinery, New York, NY, USA, Article 192, 1–5.

[2] K. Watanabe, R. Yamamura, and Y. Kakehi, “foamin: A Deformable Sensor for Multi-Modal Inputs Based on Conductive Foam with a Single Wire” Extended Abstracts of the 2021 CHI Conference on Human Factors in Computing Systems (CHI EA’21), May, 2021, Yokohama, Japan, May 2021.



Patent pending.