Integrated flexible stretchable tactile sensor based on super-capacitor sensing principle

A tactile sensor and supercapacitor technology, applied in the field of flexible sensors, can solve problems such as easy splitting or even detachment, small sensor measurement factor, and poor long-term repeatability, etc., to achieve improved application range, flexible size adjustment, and high stretch rate Effect

Active Publication Date: 2020-08-07
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the various parts of the device are not organically combined as a whole, each part is prone to splitting or even detachment during flexible bending and repeated stretc...

Method used

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  • Integrated flexible stretchable tactile sensor based on super-capacitor sensing principle
  • Integrated flexible stretchable tactile sensor based on super-capacitor sensing principle
  • Integrated flexible stretchable tactile sensor based on super-capacitor sensing principle

Examples

Experimental program
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Effect test

Embodiment 1

[0045] This embodiment provides an integrated flexible and stretchable tactile sensor based on the principle of supercapacitive sensing, which is used to monitor the pressure of parts with a large range of motion such as human body or robot joints. The electrode layer 1, the foam electrolyte layer 2, the foam lower electrode layer 3, the foam electrolyte layer and the foam upper and lower electrode layers form a sensor.

[0046] The sensor made in this embodiment is a foamy, one-piece, three-layer structure formed at one time after being frozen, with an overall length of 15mm, a width of 15mm, and a thickness of 2mm; It is mixed in a certain proportion, then foamed, and obtained after freezing. The thickness is 0.5mm, and the size of the area can be adjusted according to the needs. Attached figure 1 and figure 2 The electrode layer is 15mm long and 15mm wide; the electrolyte layer is a mesh-like foam structure, which is mixed with calcium carbonate and PVA, then foamed, and ...

Embodiment 2

[0059] This embodiment provides an integrated flexible and stretchable tactile sensor based on the principle of supercapacitive sensing, which is used to monitor the pressure of parts with a large range of motion such as human body or robot joints. The electrode layer 1, the foam electrolyte layer 2, the foam lower electrode layer 3, the foam electrolyte layer and the upper and lower foam electrode layers form a sensor.

[0060] The sensor made in this embodiment is a foamy, one-piece, three-layer structure that is molded at one time after being frozen. The overall length is 15mm, width is 15mm, and thickness is 2mm; It is mixed in a certain proportion, then foamed, and obtained after freezing. The thickness is 0.5mm, and the area size can be adjusted according to the needs. The electrode layer in the attached drawing is 15mm long and 15mm wide; the electrolyte layer is a mesh-like foam structure, composed of carbonic acid Calcium is mixed with PVA, then foamed, and obtained a...

Embodiment 3

[0073] This embodiment provides an integrated flexible and stretchable tactile sensor based on the principle of supercapacitive sensing, which is used to monitor the pressure of parts with a large range of motion such as human body or robot joints. The electrode layer 1, the foam electrolyte layer 2, the foam lower electrode layer 3, the foam electrolyte layer and the upper and lower foam electrode layers form a sensor.

[0074] The sensor made in this embodiment is a foamy, one-piece, three-layer structure formed at one time after being frozen, with an overall length of 15mm, a width of 15mm, and a thickness of 2mm; The diester is mixed according to a certain ratio, then foamed, and obtained after freezing. The thickness is 0.5mm, and the area size can be adjusted according to needs. The electrode layer in the attached drawing is 15mm long and 15mm wide; the electrolyte layer is a mesh-like foam-like structure , which is obtained by mixing calcium carbonate and PVA, then foam...

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Abstract

The invention provides an integrated flexible stretchable tactile sensor based on a super-capacitor sensing principle. The integrated flexible stretchable tactile sensor comprises a foam upper electrode layer, a foam electrolyte layer and a foam lower electrode layer which are sequentially arranged, wherein the foam electrolyte layer is prepared by foaming a mixture of a solvent, a high polymer material, esters, an ion carrier and bacterial cellulose, the mass ratio of the foam upper electrode layer to the foam lower electrode layer is (25-30):(3-4):(4-6):(1-2):(0.4-0.6), the foam upper electrode layer and the foam lower electrode layer are made of the same material and are prepared by foaming a mixture of a solvent, a polymer material, esters, a conductive material and bacterial cellulose, and the mass ratio of the five materials is (25-30):(3-4):(4):(0.4-6). The sensor disclosed by the invention has the characteristic of integral device structure integration, the electrodes and the electrolyte are well combined without microscopic physical gaps, and the sensor has the advantages of ultrahigh flexibility and stretchability while high sensitivity and the wide detection range are obtained on the basis of a super capacitor principle.

Description

technical field [0001] The invention belongs to the technical field of flexible sensors, and in particular relates to an integrated flexible and stretchable tactile sensor based on the supercapacitive sensing principle. Background technique [0002] The development of stretchable, wearable, flexible and humanized soft electronic devices is of great significance to meet the increasing complexity and multi-functionality requirements of modern electronic products. Strain sensors, which can generate repeatable electrical changes when subjected to mechanical deformation, have broad applications in robotics, sports, health monitoring, and therapy. At present, there are still defects in material performance and device structure in the development of flexible and stretchable sensors. For electrode materials, several representative strain sensors that have been used so far use conductive materials such as carbon nanotubes, metals / semiconductors, graphene, and conductive polymers, an...

Claims

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Application Information

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IPC IPC(8): G01L1/14
CPCG01L1/142
Inventor 孟垂舟王鹏孙桂芬高建卫张昊天杨丽郭士杰李国显林伟民
Owner HEBEI UNIV OF TECH
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