Preparation method of fabric-based portable flexible pressure sensor

A pressure sensor and fabric technology, applied in the direction of sensors, instruments, measuring force, etc., can solve the problems that it is difficult to further improve the output performance of the friction nanogenerator, the equipment is expensive, and the process is complicated, so as to improve the electrical output performance, the equipment is simple, and the process easy effect

Active Publication Date: 2020-05-19
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above preparation methods use complex processes, expensive equipment, and high costs, and it is difficult to further improve the output performance of triboelectric nanogenerators.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Preparation method of fabric-based portable flexible pressure sensor
  • Preparation method of fabric-based portable flexible pressure sensor
  • Preparation method of fabric-based portable flexible pressure sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A preparation method of a fabric-based portable flexible pressure sensor, the specific steps are:

[0044] Step 1: Prepare triboelectrically positive wrapping yarn, use nylon filament to coat stainless steel yarn to form triboelectrically positive wrapping yarn, wherein, the wrapping process is realized by electric motor, and stainless steel yarn is used as an electrode ;

[0045] Step 2: Prepare triboelectrically negative wrapping yarn, use PTFE filaments to coat stainless steel yarn to form triboelectronegative wrapping yarn, wherein, the wrapping process is realized by electric motor, and stainless steel yarn is used as an electrode ;

[0046] Step 3: use the triboelectrically positive wrapping yarn obtained in step 1 as the weft yarn, and the nylon yarn and the PTFE filament as the warp yarn to weave by hand to form two corresponding triboelectrically positive woven fabrics;

[0047] Step 4: using the triboelectric negative wrapping yarn obtained in step 2 as weft...

Embodiment 2

[0052] A preparation method of a fabric-based portable flexible pressure sensor, the specific steps are:

[0053] Step 1: Prepare triboelectrically positive wrapping yarn, use nylon filament to coat stainless steel yarn to form triboelectrically positive wrapping yarn, wherein, the wrapping process is realized by electric motor, and stainless steel yarn is used as an electrode ;

[0054] Step 2: Prepare triboelectrically negative wrapping yarn, use PTFE filaments to coat stainless steel yarn to form triboelectronegative wrapping yarn, wherein, the wrapping process is realized by electric motor, and stainless steel yarn is used as an electrode ;

[0055] Step 3: using the triboelectrically positive wrapping yarn obtained in step 1 as the weft yarn, and the PTFE filament as the warp yarn to weave by hand to form a corresponding triboelectrically positive fabric;

[0056] Step 4: using the triboelectric negative wrapping yarn obtained in step 2 as the weft yarn, and the nylon y...

Embodiment 3

[0060] A preparation method of a fabric-based portable flexible pressure sensor, the specific steps are:

[0061] Step 1: Prepare triboelectrically positive wrapping yarn, use nylon filament to coat stainless steel yarn to form triboelectrically positive wrapping yarn, wherein, the wrapping process is realized by electric motor, and stainless steel yarn is used as an electrode ;

[0062] Step 2: Prepare triboelectrically negative wrapping yarn, use PTFE filaments to coat stainless steel yarn to form triboelectronegative wrapping yarn, wherein, the wrapping process is realized by electric motor, and stainless steel yarn is used as an electrode ;

[0063] Step 3: using the triboelectrically positive wrapping yarn obtained in step 1 as the weft yarn, and the PTFE filament as the warp yarn to weave by hand to form a corresponding triboelectrically positive fabric;

[0064] Step 4: using the triboelectric negative wrapping yarn obtained in step 2 as the weft yarn, and the nylon y...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a preparation method of a fabric-based portable flexible pressure sensor. The method is characterized by comprising the following steps: preparing triboelectric positive fasciated yarns and triboelectric negative fasciated yarns, and weaving the obtained triboelectric positive/negative fasciated yarns as weft yarns and nylon yarns or PTFE filaments as warp yarns to form a corresponding triboelectric positive fabric; and combining the triboelectric positive fabric with a triboelectric negative fabric to form the fabric-based portable flexible pressure sensor. By improving the effective contact area between an electropositive friction material and an electronegative friction material in unit area, the electric output performance of a friction nano-generator is improved, and the sensing performance of the flexible pressure sensor based on the friction nano-generator is improved; the sensor is used for monitoring carry-on motion signals at human joint parts and monitoring human pulse signals at carotid arteries to obtain corresponding signal results with reference values such that effective reference bases are provided for medical diagnosis and health assessment.

Description

technical field [0001] The invention belongs to the fields of flexible pressure sensors, intelligent wearable and sports health and medical monitoring, and specifically relates to a preparation method of a fabric-based high-sensitivity flexible pressure sensor for monitoring body motion signals and human pulse signals. Background technique [0002] In recent years, the research on the application of flexible wearable pressure sensors in the field of medical monitoring has become more and more in-depth and mature. Wearable, self-driving and other advantages. With the rapid development of modern technology and the continuous improvement of living standards, the real-time monitoring of human sports health and pulse signals plays an increasingly important role in disease diagnosis, rehabilitation treatment and health assessment, and the equipment is becoming more and more miniaturized and multifunctional This is also the current requirement for such long-term monitoring equipme...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/00A61B5/00A61B5/02A61B5/11
CPCA61B5/02A61B5/1118A61B5/6802G01L1/005
Inventor 李召岭楼梦娜朱苗苗卫学典丁彬俞建勇
Owner DONGHUA UNIV
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