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Flexible tactile sensor unit based on annular spiral fiber and preparation method

A tactile sensor and fiber unit technology, applied in the field of sensors, can solve the problems that the structure is difficult to take into account the bending characteristics and stretching characteristics, restrict the application of resistive tactile sensors, etc., and achieve the effect of excellent compatibility and strong portability

Pending Publication Date: 2021-05-28
HEFEI AICHUANGWEI ELECTRONIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Scholars at home and abroad have proposed and designed many devices and array structures for the tactile sensor unit and its array, but many structures are difficult to take into account the bending characteristics and tensile characteristics, and there are certain problems in sensitivity, detection limit and stability, etc. Applications of Resistive Tactile Sensors

Method used

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  • Flexible tactile sensor unit based on annular spiral fiber and preparation method
  • Flexible tactile sensor unit based on annular spiral fiber and preparation method
  • Flexible tactile sensor unit based on annular spiral fiber and preparation method

Examples

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Effect test

preparation example Construction

[0038] A kind of above-mentioned preparation method of the flexible tactile sensor unit based on annular helical fiber, comprises the following steps:

[0039] Material preparation: soak and clean the fiber substrate in ethanol and deionized water respectively, and dry it at room temperature for later use;

[0040] Preparation of conductive fiber: Dissolve conductive material in naphtha in proportion, ultrasonically treat for 0.5-2h, add rubber-based polymer material after magnetic stirring for 0.5-2h, continue stirring for 1-3h, and obtain conductive composite material solution; Put the fiber substrate into the above-mentioned conductive composite material solution for 5-10 minutes, and dry it under vacuum at 40-60°C to obtain conductive fibers;

[0041] Preparation of annular helical fiber unit: Dissolve the strain-sensitive material in naphtha according to the proportion, ultrasonically treat it for 1-3 hours, add the rubber-based polymer material after magnetic stirring fo...

Embodiment 1

[0045] S1: Soak the spandex fabric substrate and spandex fiber substrate in ethanol and deionized water respectively, clean them, and dry them at room temperature for later use;

[0046] S2: Dissolve 0.15g of carbon black and 0.15g of silver nanoparticles in naphtha, ultrasonically disperse for 0.5h, stir magnetically for 1h, add 1.5g of silicone rubber, and then perform magnetic stirring for 1.5h to obtain carbon black / silver nanoparticles particle / silicone rubber composite solution;

[0047] S3: put the spandex fiber substrate into the above carbon black / silver nanoparticle / silicone rubber composite material solution for 5 minutes, and vacuum-dry at 40°C to obtain conductive fibers;

[0048] S4: Dissolve 0.1g of graphene nanosheets and 0.05g of carbon nanotubes in naphtha, ultrasonically disperse them for 2h, and magnetically stir for 1.5h, then add 2g of silicone rubber, and then perform magnetic stirring for 2h to obtain graphene nanosheets / Carbon nanotube / silicone rubbe...

Embodiment 2

[0053] S1: Soak the spandex fabric substrate and spandex fiber substrate in ethanol and deionized water respectively, clean them, and dry them at room temperature for later use;

[0054] S2: Dissolve 0.15g of carbon black and 0.15g of silver nanoparticles in naphtha, ultrasonically disperse for 0.5h, stir magnetically for 1h, add 1.5g of silicone rubber, and then perform magnetic stirring for 1.5h to obtain carbon black / silver nanoparticles particle / silicone rubber composite solution;

[0055] S3: put the spandex fiber substrate into the above carbon black / silver nanoparticle / silicone rubber composite material solution for 5 minutes, and vacuum-dry at 40°C to obtain conductive fibers;

[0056] S4: Dissolve 0.1g of graphene nanosheets and 0.05g of carbon nanotubes in naphtha, ultrasonically disperse them for 2h, and magnetically stir for 1.5h, then add 2g of silicone rubber, and then perform magnetic stirring for 2h to obtain graphene nanosheets / Carbon nanotube / silicone rubbe...

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Abstract

The invention discloses a flexible tactile sensor unit based on the annular spiral fiber and a preparation method, the flexible tactile sensor unit comprises a substrate layer, a support layer, a tactile sensing layer and an electrode layer, and the support layer covers the substrate layer; the tactile sensing layer comprises X*Y annular spiral fiber units distributed on the support layer; the electrode layer is arranged on the support layer and used as a signal output lead to be connected with the X*Y annular spiral fiber units. The flexible tactile sensor unit based on the annular spiral sensitive fiber has a great design freedom degree, array blocks of different sizes can be designed according to needs, and meanwhile, the array blocks are arranged and assembled into a splicing type array structure according to the structure surfaces of different regular and irregular carriers; the splicing type array structure can be expanded into different types of touch sensing arrays, and has higher transportability.

Description

technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to a flexible tactile sensor unit based on an annular helical fiber and a preparation method thereof. Background technique [0002] In recent years, tactile sensors with high flexibility, large area, and high stability have received more and more attention in the fields of robotic electronic skin, health monitoring, human-computer interaction, and master-slave hand coordination systems. The development trend puts forward higher requirements for the ability of tactile sensing devices to acquire information. At present, the metal foil pressure sensors used in rigid devices and their systems are difficult to meet the needs of being stickable, wearable, and portable in terms of flexibility and elasticity. Flexible tactile sensors in the field of flexible electronic skin are compatible with human skin, are friendly, reliable, and safe. properties, making it widely researched...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22D01F1/09
CPCD01F1/09G01L1/22
Inventor 赵雨农潘俊郭小辉郭沁文陈东亮王威季芬芬韩磊王科
Owner HEFEI AICHUANGWEI ELECTRONIC TECH CO LTD
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