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Flexible capacitive sensor and preparation method thereof

A flexible capacitor and sensor technology, applied in the field of flexible sensors, can solve the problems of low sensitivity of flexible capacitive sensors, and achieve the effect of increasing capacitance and improving sensitivity

Pending Publication Date: 2022-02-11
CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST THE FIFTH ELECTRONICS RES INST OF MIITCEPREI LAB
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Based on this, it is necessary to provide a flexible capacitive sensor and its preparation method for the problem of low sensitivity of the flexible capacitive sensor obtained in the current preparation method

Method used

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  • Flexible capacitive sensor and preparation method thereof
  • Flexible capacitive sensor and preparation method thereof
  • Flexible capacitive sensor and preparation method thereof

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Embodiment Construction

[0026] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application, and are not intended to limit the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terms used herein in the specification of the application are only for the purpose of describing specific embodiments, and are not intended to limit the application.

[0028] It can be understood that the terms "first", "second" and the like used in this application may be used to describe various elements herein, but these elements are not limited by these terms. ...

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Abstract

The invention relates to a flexible capacitive sensor and a preparation method thereof, the flexible capacitive sensor comprises a first protection layer, a first electrode layer, a dielectric layer, a second electrode layer and a second protection layer, the first protection layer and the second protection layer are oppositely arranged, the first electrode layer and the second electrode layer are oppositely arranged, and the dielectric layer is arranged between the first electrode layer and the second electrode layer; the surface, far away from the second electrode layer, of the dielectric layer is provided with hollow protruding structures. When the flexible capacitive sensor is prepared, the hollow protruding structures which are uniformly distributed are formed on the surface of the dielectric layer of the flexible capacitive sensor, so that the hollow convex structures on the surface of the dielectric layer can generate relatively large deformation when the flexible capacitive sensor is subjected to a pressure effect; the effective dielectric constant of the dielectric layer can be changed, so that the test capacitance is rapidly increased, and the sensitivity of the sensor is improved.

Description

technical field [0001] The present application relates to the field of flexible sensors, in particular to a flexible capacitive sensor and a preparation method thereof. Background technique [0002] With the development of technologies such as artificial intelligence and the Internet of Things, flexible sensors have gradually gained popularity in important fields such as wearable electronic devices, human-computer interaction devices, and aircraft smart skins due to their unique advantages such as high stretchability and extremely light weight. Extensive attention has shown a huge application prospect. According to different sensing principles, flexible sensors currently mainly include three types: piezoelectric sensors, piezoresistive sensors, and capacitive sensors. Among them, capacitive sensors have the advantages of simple structure, low energy consumption, good dynamic response, and less susceptible to environmental factors. It is widely used. [0003] Although the u...

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Application Information

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IPC IPC(8): G01L1/14
CPCG01L1/142G01L1/148
Inventor 杨晓锋付志伟陈思黄云周斌朱建垣周向胜
Owner CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST THE FIFTH ELECTRONICS RES INST OF MIITCEPREI LAB
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