Integrated active power supply flexible pressure sensor

A pressure sensor and flexible technology, applied in the field of sensors, can solve the problems of large size, hinder the thinning and convenience of wearable applications, and achieve the effect of good flexibility, stability and good biocompatibility

Active Publication Date: 2019-07-05
TACSENSE SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides an integrated active power supply flexible pressure sensor, which aims to solve the problem that most of the existing sensors need an external power supply to drive their operation, and the existing power supply is mostly a rigid battery, resulting in a large overall system volume and extremely The problem that the earth hinders its thinness and convenience in wearable applications

Method used

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  • Integrated active power supply flexible pressure sensor

Examples

Experimental program
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Effect test

Embodiment approach

[0055] As an embodiment, the preparation method of the conductive fiber paper includes: providing a conductive material solution and fiber paper, soaking the fiber paper in the conductive material solution to obtain the conductive fiber paper. As an embodiment, the preparation method of the conductive woven fabric includes: providing a conductive material solution and the woven fabric, soaking the woven arrangement in the conductive material solution to obtain the conductive woven fabric.

[0056] In a specific embodiment, the preparation method of PEDOT:PSS conductive fiber paper is as follows: providing fiber paper and PEDOT:PSS, soaking the fiber paper in the PEDOT:PSS to obtain conductive fiber paper. With the help of the porous structure of the fiber paper itself, the fiber paper is dip-coated with a conductive polymer (PEDOT:PSS) to prepare a flexible pressure sensing material, and a sensing unit with excellent conductivity and sensing sensitivity is obtained.

[0057] I...

Embodiment 1

[0068] An integrated active power supply flexible pressure sensor, including a stacked power unit of a sandwich structure and a sensing unit of a sandwich structure, and also includes a wireless signal output unit connected to the sensor, and the power unit is the sensor unit and the wireless signal output unit are powered, wherein,

[0069] In the power unit, the power unit is a zinc-air battery, including an anode and a cathode arranged oppositely, and a gel electrolyte sandwiched between the cathode and the anode, and the anode is a flexible zinc-containing Electrode, the gel electrolyte is ammonium chloride / polyvinyl alcohol / polyethylene glycol diacrylate based polymer hydrogel, the flexible air electrode is silver / conductive carbon electrode; the ammonium chloride / polyethylene In the alcohol / polyethylene glycol diacrylate-based polymer hydrogel, the weight ratio of ammonium chloride, polyvinyl alcohol, polyethylene glycol diacrylate, and water is 20:10:20:100; the power u...

Embodiment 2

[0073] The integrated active power supply flexible pressure sensor prepared in Example 1 was used in the pulse beating test of the human wrist, neck, and instep respectively, and the results are as follows: Figure 8 shown.

[0074] It can be seen from the figure that the integrated active power supply flexible pressure sensor provided by the embodiment of the present invention can accurately detect the pulse of different parts of the human body.

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Abstract

The invention provides an integrated active power supply flexible pressure sensor. The sensor comprises a sensing unit of a sandwich structure and a power unit which is arranged with the sensing unitin a cascading mode and is used for providing power for the sensing unit. The power unit is a zinc-air cell of the sandwich structure, and comprises an anode, a cathode and a gel electrolyte, whereinthe anode and the cathode are oppositely arranged, and the gel electrolyte is arranged between the cathode and the anode. The anode is a flexible zinc-containing electrode, and the cathode is a flexible air electrode. The sensing unit comprises a negative electrode, a positive electrode and conductive fiber paper or conductive woven cloth, wherein the negative electrode and the positive electrodeare arranged oppositely, and the conductive fiber paper or the conductive woven cloth are arranged between the positive electrode and the negative electrode. The sensing unit takes the flexible zinc-containing electrode of the power unit as the negative electrode. The integrated active power supply flexible pressure sensor realizes an integrated design of the power unit and the sensing unit, and can be applied to practical applications such as human physical health monitoring and the like.

Description

technical field [0001] The invention belongs to the technical field of sensors, in particular to an integrated active power supply flexible pressure sensor. Background technique [0002] With the rapid popularization of smart terminals, the current research and application of flexible and wearable electronics has been reflected in many aspects of human life, such as electronic skin, wearable physiological monitoring devices, human-computer interaction, etc. As one of the core components, sensors play a vital role in human health monitoring and artificial intelligence, and also affect the functional design and future development of wearable devices. As an emerging electronic product with good deformability and stability, various flexible and wearable sensors are rapidly developing in global medical monitoring systems, including implantable biomedical sensors, chemical sensors, pressure sensors, etc. Among these research results, the pressure sensor, as an important functiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22H01M12/06
CPCG01L1/2287H01M12/065H01M2300/0085
Inventor 孙洪岩常煜
Owner TACSENSE SHENZHEN
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