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Interdigital counter electrode type flexible tactile sensor based on super capacitor sensing principle and preparation method thereof

A tactile sensor and supercapacitor technology, applied in the field of flexible sensors, can solve problems such as the inability to fully meet the stretching requirements of electronic skin, and achieve the effect of improving the scope of application, increasing sensitivity, and widening the measurement range

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

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Problems solved by technology

However, solving the tensile properties only in geometric engineering will be limited by the material itself, which cannot fully meet the stretching requirements of electronic skin.

Method used

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  • Interdigital counter electrode type flexible tactile sensor based on super capacitor sensing principle and preparation method thereof
  • Interdigital counter electrode type flexible tactile sensor based on super capacitor sensing principle and preparation method thereof
  • Interdigital counter electrode type flexible tactile sensor based on super capacitor sensing principle and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0045] This embodiment provides an interdigitated counter electrode flexible tactile sensor based on the principle of supercapacitive sensing, which is used to measure the pressure of the body, such as Figure 1-4 As shown, the sensor includes a mesh-shaped electrolyte layer 1, an interdigitated counter electrode 2, and a flexible substrate 3 from top to bottom. Each interdigitated counter electrode, the flexible substrate below it, and the electrolyte above form a sensor unit. Such as Figure 5 As shown, the sensor has 3 sensor units in the horizontal direction and 3 sensor units in the vertical direction, and the thickness is 0.5mm; the area size can be adjusted according to the needs. The gap between the counter electrodes is 5 mm, and the length is 20 mm; the thickness of the overall sensor made in this embodiment is 1 mm, and the thickness of the flexible substrate is 0.5 mm.

[0046] The preparation method of this embodiment based on the super electric double layer capa...

Embodiment 2

[0055] This embodiment provides an interdigitated counter-electrode flexible tactile sensor based on the principle of supercapacitive sensing, which is used to measure the pressure of the body. The sensor includes a mesh-shaped electrolyte layer 1, an interdigitated Counter electrode 2, flexible substrate 3, each interdigitated counter electrode, the flexible substrate below, and the electrolyte above form a sensor unit. The sensor has 3 sensor units in the horizontal direction and 3 sensor units in the vertical direction, with a thickness of 0.5mm; the area size It can be adjusted as required. The maximum diameter of the interdigitated electrode unit in the accompanying drawings is 15mm, the gap between the two interdigitated counter electrodes is 5mm, and the length is 20mm; the overall sensor made in this embodiment is 1mm thick, and the flexible substrate The thickness is 0.5mm.

[0056] The fabrication process of this embodiment based on the super electric double layer ca...

Embodiment 3

[0064] This embodiment provides an interdigitated counter-electrode flexible tactile sensor based on the principle of supercapacitive sensing, which is used to measure the pressure of the body. The sensor includes a mesh-shaped electrolyte layer 1, an interdigitated Counter electrode 2, flexible substrate 3, each interdigitated counter electrode, the substrate below it, and the electrolyte above form a sensor unit. The sensor has 3 sensor units in the horizontal direction and 3 sensor units in the vertical direction, with a thickness of 0.5mm; the area size can be Adjust as required, the maximum diameter of the interdigitated counter electrode unit in the accompanying drawings is 15mm, the gap between the two interdigitated counter electrodes is 5mm, and the length is 20mm; the overall sensor made in this embodiment is thick 1mm, the base The thickness is 0.5mm.

[0065] The fabrication process of this embodiment based on the super electric double layer capacitive flexible tac...

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Abstract

The invention provides an interdigital counter electrode type flexible tactile sensor based on a super capacitor sensing principle and a preparation method thereof. The sensor comprises a flexible substrate, an interdigital counter electrode and an electrolyte layer, wherein the interdigital counter electrode is laid on the surface of the flexible substrate, the electrolyte layer is attached to the interdigital counter electrode, the electrolyte layer is prepared by foaming a mixture comprising a first solvent, esters, a high polymer material and an ion carrier, and the mass ratio of the firstsolvent to the esters to the high polymer material to the ion carrier is (25-30):(3-4):(4-6):(1-2). The sensor provided by the invention has the characteristic of flexibility and can be stretched, and the stretching rate can reach up to 300%, so that the pressure condition can be monitored under a larger deformation condition, and the application range of the sensor is expanded.

Description

technical field [0001] The invention belongs to the technical field of flexible sensors, and in particular relates to an interdigitated counter-electrode flexible tactile sensor based on the supercapacitive sensing principle and a preparation method thereof. Background technique [0002] Electronic skin has similar functions to human skin, including stretchability, self-healing, and multifunctional perception, and has broad application prospects in the fields of personalized medicine, artificial intelligence devices, and soft robotic systems. Among the numerous electronic skin soft sensors, the tactile sensor is a very important sensor, which can convert mechanical stimuli into readable signals. There are three main modes of operation for tactile sensors, including resistive, capacitive and piezoelectric modes. Among them, compared with the other two, the capacitive touch sensor has the advantages of low hysteresis, high stability and high linearity, and has broad applicati...

Claims

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Application Information

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IPC IPC(8): G01N27/22H01G11/56
CPCG01N27/226H01G11/56Y02E60/13
Inventor 孟垂舟王鹏孙桂芬张昊天高建卫刘吉晓郭士杰候占瑞
Owner HEBEI UNIV OF TECH
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