A high-sensitivity flexible pressure sensor based on modified paper base and its preparation method

A pressure sensor and high-sensitivity technology, applied in the field of sensors, can solve problems such as low sensitivity, slow response time, and poor durability, and achieve high sensitivity, improved electrical characteristics, and good durability

Active Publication Date: 2021-02-05
HEFEI UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on the impregnation-wrapping method, the present invention proposes a modified paper-based high-sensitivity flexible pressure sensor and its preparation method, aiming to solve the problems of low sensitivity, slow response time and poor durability of existing paper-based pressure sensors. and improve the capabilities of pressure sensors as wearable devices

Method used

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  • A high-sensitivity flexible pressure sensor based on modified paper base and its preparation method
  • A high-sensitivity flexible pressure sensor based on modified paper base and its preparation method
  • A high-sensitivity flexible pressure sensor based on modified paper base and its preparation method

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Embodiment 1

[0042] Such as figure 1 As shown, the structure of the high-sensitivity flexible pressure sensor based on the modified paper base of the present invention is as follows: the modified paper base impregnated with the conductive solution is used as the paper base sensing unit 4, and the circular interdigitated electrode 3 is used to output electrical characteristics For the signal, the micro-dome contact array 5 is used to amplify the electrical characteristic change signal when the pressure is applied, and two silicon rubber films 1 are used to package the sensor integrally. In the figure, double-sided transparent VHB tape 2 is used to fix the interdigital electrodes to ensure the stability of the signal.

[0043]The paper base used in this example is a commercially available three-ply toilet paper, which is cut to 10mm×10mm.

[0044] The circular interdigitated electrodes used in this embodiment were purchased from Shenzhen Yibang Precision Circuit, with a diameter of 10 mm, a...

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Abstract

The invention discloses a high-sensitivity flexible pressure sensor based on a modified paper base and a preparation method thereof. In the pressure sensor, the paper base modified by sodium hydroxide is dipped in a conductive solution as a tactile sensitive unit. The pressure sensor obtained in the present invention has high sensitivity, fast response characteristics, low detection limit and long-lasting performance, and can be used as an electronic skin to monitor various physiological parameters of the human body, such as pulse, respiration, sound and the like.

Description

technical field [0001] The invention belongs to the field of sensors, and in particular relates to a modified paper-based high-sensitivity flexible pressure sensor and a preparation method thereof. Background technique [0002] Wearable flexible pressure sensor, as a kind of artificial flexible electronic device with high flexibility, sensing sensitivity similar to human skin tactile function, and realizing external environment information perception function, has great potential in the fields of artificial intelligence, bioelectronics, medical treatment and human-computer interaction. Wide application prospects. Conceiving, designing, and fabricating flexible pressure sensors for monitoring physiological parameters such as pulse, respiration, and sound have attracted much attention recently, and become a research hotspot in the fields of flexible electronics, artificial skin, and healthcare. The sensors used based on the above applications must have excellent characteristi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/20G01L5/00
CPCG01L1/205G01L5/00
Inventor 黄英王志强汪洋刘平刘彩霞杨晓明
Owner HEFEI UNIV OF TECH
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