Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Flexible strain sensor based on same conductive material and preparation method thereof

A technology of strain sensor and conductive material, applied in the field of sensors, can solve the problems of complex production process of flexible strain sensor, difficult to achieve mass production, etc., to achieve convenient integration in external equipment, high commercial value and industrialization prospects, and reduce noise interference Effect

Active Publication Date: 2021-07-02
SOUTH CHINA UNIV OF TECH +1
View PDF17 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the development status of the prior art, the present invention provides a flexible strain sensor based on the same conductive material and its preparation method, aiming to solve the problem that the flexible strain sensor is complicated in manufacturing process and difficult to realize large-scale production

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible strain sensor based on same conductive material and preparation method thereof
  • Flexible strain sensor based on same conductive material and preparation method thereof
  • Flexible strain sensor based on same conductive material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but the embodiments of the present invention are not limited thereto.

[0028] combine figure 1 and 2 , the flexible strain sensor in this embodiment is a layered structure, including a flexible substrate 1 on the bottom layer, a sensing region 2 and a connecting region 3 on the flexible substrate 1, an encapsulation layer 4 for protecting the sensing region 2, and a Accessories for electrical connection, including metal buttons 5 and wires 6. The sensing area and connection area are the middle layer, and the encapsulation layer is the top layer.

[0029] Both the sensing area and the connecting area are made of the same conductive material, and the sensor based on the same conductive material can be printed in one step through a screen printing process instead of in steps. That is to say, the sensing area and the connection area are made of t...

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
Login to View More

PUM

PropertyMeasurementUnit
Effective lengthaaaaaaaaaa
Widthaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a flexible strain sensor based on the same conductive material and a preparation method thereof. The sensor comprises a sensing area, a connecting area, a packaging layer and a flexible substrate. Compared with an existing sensor of the same type, the sensor is characterized in that the sensing area and the connecting area are made of the same conductive material, and the design rules of the sensing area and the connecting area of the sensor based on the same conductive material are met by adjusting the size structures of different areas. The sensor is prepared by printing carbon black-silicone rubber composite conductive slurry on a fabric substrate in one step based on a silk-screen printing process. The method is easy and convenient to operate, low in manufacturing cost and suitable for large-scale production, and the prepared sensor has high sensitivity (about 10), a large strain range (about 100%), low hysteresis quality and good stability and can be applied to the fields of human motion detection, intelligent medical services and the like. The preparation method of the sensor has important reference value for industrial production of the flexible strain sensor.

Description

technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to a flexible strain sensor based on the same conductive material and a preparation method thereof. Background technique [0002] A strain sensor is a device that converts an external mechanical signal into an electrical signal. The device deforms under the action of an external force, which causes a change in the electrical properties of the internal sensing material to achieve sensing. Most of the traditional strain sensors are made of metal and semiconductor materials. Due to their narrow tensile strain range and not easy to bend, they are difficult to be applied on complex interfaces. Due to its advantages of ultra-thinness, low modulus, high flexibility and high ductility, flexible strain sensors can be attached to complex curved surface shapes, and can be applied to more and more complex application environments than traditional metal sensors, which has attracted r...

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01B7/16
CPCG01B7/20G01L1/2287
Inventor 舒琳陈晓斌徐向民
Owner SOUTH CHINA UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com