Flexible proximity sense and pressure touch sensor, sensing system and flexible electronic skin

Abstract

The invention discloses a flexible proximity sense and pressuretouch sensor, a sensing system and a flexible electronic skin. The sensor comprises: an electrode layer, wherein the electrode layer comprises a bow-shaped electrode stereoscopically distributed in space and a trapezoidal interdigital electrode closing the bow-shaped electrode, the bow-shaped electrode and the trapezoidal interdigital electrode being integrally in a bow-trapezoidal stacked interdigital structure; and a flexible substrate assembly which comprises a bow-shaped electrode flexible substrate, a trapezoidal electrode flexible substrate and a stepped prism structure dielectric layer connected between the bow-shaped electrode flexible substrate and the trapezoidal electrode flexible substrate, wherein the bow-shaped electrode flexible substrate and the trapezoidal electrode flexible substrate package the bow-shaped electrode and the trapezoidal interdigital electrode respectively; and the stepped prism structure dielectric layer is formed by a plurality of bionic bent frog leg structure single arrays. The sensor has the advantages of excellent sensitivity, dynamic response and the like.

Description

technical field [0001] The invention relates to a flexible proximity and pressure tactile sensor, a sensing system and a flexible electronic skin, belonging to the technical field of flexible sensing. Background technique [0002] In recent years, with the wave of new technology, the market share of smart wearable devices is increasing, and the functions and appearance are constantly updated, bringing people a different life experience. Smart wearable devices combine information collection, recording, storage, display, transmission, analysis, and other functions with our daily wear and become part of our wear. Smart wearable devices include helmets, glasses, insoles and socks, schoolbags and watches, etc., and can penetrate into all aspects of life in the future. Sensors are particularly important as the sensing end of wearable devices. Furthermore, proximity and pressure tactile sensors are an important branch of wearable sensors. Scholars at home and abroad tend to pursu...

AI Technical Summary

Problems solved by technology

[0005] The disadvantage of the above-mentioned prior art is that in the tactile response mode, since the elastic dielectric is a planar layered structure, the elastic modulus is low, thus resulting in low sensitivity, long response time and recovery time; and in the proximity response mode, The open fringe field makes the acquisition signal susceptible to interference and other shortcomings, and this type of sensor is difficult to array

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