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Wearable flexible pressure electronic sensor and manufacturing method

An electronic sensor and pressure sensor technology, applied in the field of sensors, can solve the problems of limited deformation degree, general sensitivity, and limited application in the field of wearable body sign detection, and achieve the effect of improving deformation force, sensitivity and large deformation force.

Inactive Publication Date: 2020-06-16
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It can be seen that the materials used for flexible pressure sensors in the prior art are mostly rubber, etc., which have problems such as limited deformation and general sensitivity, which limit their application in the field of wearable human body sign detection.

Method used

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  • Wearable flexible pressure electronic sensor and manufacturing method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The wearable flexible pressure electronic sensor consists of a flexible curved polyimide film layer, an electrode layer, a dielectric layer, an electrode layer and a flexible curved polyimide film layer from bottom to top. The curvature of the flexible curved polyimide film layer is 4000R, and the thickness is 20 μm. The curved surfaces of the two flexible curved polyimide film layers are combined relative to the concave and convex. The material of the electrode layer is a mixed electrode of graphite and pure copper, with a thickness of 10 μm. The material of the dielectric layer is a polyvinylidene fluoride film with a thickness of 50 μm.

[0030] Made by the following steps:

[0031] a. Spin-coating polyimide on a flexible silica gel substrate with a curved surface to obtain a flexible curved polyimide film layer;

[0032] b. The flexible curved polyimide film layer, the electrode layer, the dielectric layer, the electrode layer, and the flexible curved polyimide f...

Embodiment 2

[0036] The wearable flexible pressure electronic sensor consists of a flexible curved polyimide film layer, an electrode layer, a dielectric layer, an electrode layer and a flexible curved polyimide film layer from bottom to top. The curvature of the flexible curved polyimide film layer is 2500R, and the thickness is 30 μm. The curved surfaces of the two flexible curved polyimide film layers are combined relative to the concave and convex. The material of the electrode layer is a mixed electrode of graphite and pure copper, with a thickness of 10 μm. The material of the dielectric layer is polystyrene film with a thickness of 50 μm.

[0037] Made by the following steps:

[0038] a. Spin-coating polyimide on a flexible silica gel substrate with a curved surface to obtain a flexible curved polyimide film layer;

[0039] b. The flexible curved polyimide film layer, the electrode layer, the dielectric layer, the electrode layer, and the flexible curved polyimide film layer are ...

Embodiment 3

[0043] The wearable flexible pressure electronic sensor consists of a flexible curved polyimide film layer, an electrode layer, a dielectric layer, an electrode layer and a flexible curved polyimide film layer from bottom to top. The curvature of the flexible curved polyimide film layer is 3000R, and the thickness is 28 μm. The curved surfaces of the two flexible curved polyimide film layers are combined relative to the concave and convex. The material of the electrode layer is a mixed electrode of graphite and pure copper, with a thickness of 5 μm. The material of the dielectric layer is polycarbonate film with a thickness of 70 μm.

[0044] Made by the following steps:

[0045] a. Spin-coating polyimide on a flexible silica gel substrate with a curved surface to obtain a flexible curved polyimide film layer;

[0046] b. The flexible curved polyimide film layer, the electrode layer, the dielectric layer, the electrode layer, and the flexible curved polyimide film layer are...

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Abstract

The invention discloses a wearable flexible pressure electronic sensor and a manufacturing method thereof. The pressure sensor is manufactured by the following steps: a, spin-coating polyimide on a flexible silica gel substrate with a cambered surface to prepare a flexible cambered surface polyimide film layer; and b, sequentially paving and pasting the flexible cambered surface polyimide film layer, an electrode layer, a dielectric layer, the electrode layer and the flexible cambered surface polyimide film layer, and carrying out hot-pressing bonding molding to obtain the flexible pressure sensor. The flexible cambered surface polyimide film is used as a sensor material. When a load acts on a surface of the sensor, a strain in a piezoelectric film layer is remarkably amplified, sensitivity of the sensor is improved, a deformation force is increased, a measuring range is large, and the sensor can be effectively worn by a human body for a long time to monitor various physical sign signals of the human body in real time.

Description

technical field [0001] The invention relates to the field of sensors, in particular to the preparation of pressure sensors, in particular to a wearable flexible pressure electronic sensor and a preparation method. Background technique [0002] A pressure sensor is a sensor that can sense changes in external pressure and is widely used in wearable, attachable electronic skins and electronic devices. In order to be able to keep in line with the technological development trend of the information age, which requires a surge in the amount of information and an increasing ability to capture and process information. Electronic skin or electronic devices have increasingly stringent requirements for performance indicators such as flexibility, accuracy, reliability, and sensitivity. Correspondingly, the performance indicators for pressure sensors are also becoming more and more stringent. However, traditional bulky and weak-function sensors are often difficult to meet the above requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/14
CPCG01L1/142
Inventor 陈庆司文彬
Owner CHENDU NEW KELI CHEM SCI CO LTD
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