All-flexible resistive touch and pressure perception sensor and manufacturing method thereof

A tactile perception and sensor technology, applied in the field of sensing, can solve problems such as insufficient stress detection sensitivity and accuracy, and achieve the effects of improving surface adaptability, avoiding cumbersome wiring, and improving resolution and sensitivity.

Inactive Publication Date: 2015-12-09
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

YangyongWang et al. introduced a stretchable fabric sensor method embedded in an elastic matrix, which can achieve 1MPa stress detection, but the sensitivity and accuracy of stress detection in small ranges are insufficient.

Method used

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  • All-flexible resistive touch and pressure perception sensor and manufacturing method thereof
  • All-flexible resistive touch and pressure perception sensor and manufacturing method thereof
  • All-flexible resistive touch and pressure perception sensor and manufacturing method thereof

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Embodiment Construction

[0032] like figure 1 and figure 2 As shown, the overall structure of the fully flexible resistive touch-pressure sensing sensor of this embodiment is flat hemispherical, which is convenient for all parts of the sensor to feel the external force evenly. The height is 5mm, the bottom radius is 10mm, and the curvature radius is 12.5mm; The tactile sensing sensor for sensing the external force in the small range and the pressure sensing sensor for sensing the external force in the large range in the lower layer;

[0033] The tactile sensing sensor uses graphene / carbon black filled silicone rubber 1 as a sensitive material, adopts an interdigitated electrode structure on the same surface, and the flexible interdigitated electrodes on the upper surface of the upper flexible substrate 2 are used as electrodes;

[0034] The pressure sensing sensor includes carbon nanotubes / carbon black filled silicone rubber 3 as a sensitive material, adopts an upper and lower electrode structure, a...

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Abstract

The invention discloses an all-flexible resistive touch and pressure perception sensor and a manufacturing method thereof. The all-flexible resistive touch and pressure perception sensor is characterized in that a pressure perception sensor and a touch perception sensor are formed on a lower flexible substrate through a layer-by-layer assembly technology; the pressure perception sensor and the touch perception sensor are connected by an upper flexible substrate, and are shaped as a flat half-sphere as a whole; and the upper touch perception sensor is of an interdigital electrode structure, and the lower pressure perception sensor is of an upper and lower electrode structure. The all-flexible resistive touch and pressure perception sensor of the invention can be used to measure small-range touch force and large-range pressure force, and the accuracy of measurement of different ranges is ensured. Moreover, all the structures of the sensor are flexible, all leads are led to the bottom, and the phenomenon of tedious and ugly leads is avoided.

Description

technical field [0001] The invention belongs to the field of sensor technology, and relates to a fully flexible resistive touch pressure sensor applied to artificial intelligence skin. Background technique [0002] The system for human beings to perceive external forces is an exquisitely structured system. The human skin's perception of stress acting on it, that is, mechanical stimulation, is mainly divided into touch and pressure. The receptors of the two are different. The tactile receptors are tactile corpuscles (distributed in the papillary layer of the superficial dermis) and nerve endings surrounding the hair follicles in the skin. The pressure receptors are lamellar bodies (distributed in the deep reticular layer of the dermis). The sense of touch is elicited by slight stimuli that do not deform the skin, and the sense of pressure is elicited by stimuli that deform the skin. As a robot smart skin imitating human skin, perception of external force information is an e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
Inventor 黄英汪卫华汪月何晓玥郭小辉刘彩霞刘平
Owner HEFEI UNIV OF TECH
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