Abstract

The past decade has witnessed an emerging and fast-growing field on mechanically soft systems, ranging from soft materials (e.g. hydrogels) to soft devices (e.g. flexible electronics), and to soft functional systems (e.g. soft robotics). It is envisioned that soft systems will continue to thrive in the coming decades in academia and industrial communities. The launch of Soft Science is to provide the first dedicated platform for publishing research findings and to share the knowledge among the communities.

Highlights

  • Tactile sensation is the basic perception ability of human skin, which is a kind of feeling produced by tactile receptors in response to external stimuli

  • We summarize the recent progress of the flexible tactile sensor systems

  • We briefly summarize the recent progress of flexible tactile sensor systems, including the sensing mechanisms, the common functional materials, the important parameters to evaluate the performance, the device design, and the main applications

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Summary

Introduction

Tactile sensation is the basic perception ability of human skin, which is a kind of feeling produced by tactile receptors in response to external stimuli. To satisfy the requirements of numerous emerging applications, flexibility, sensitivity, sensing range, response time, stability, and other performance parameters of flexible tactile sensors are continuously improved[3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19]. The main performance evaluation parameters of a flexible tactile sensor include sensitivity, sensing range, response time, repeatability, stability, etc.

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