Flexible wearable paper-based strain sensor and preparation method thereof

A strain sensor and paper-based technology, applied in the field of sensors, can solve the problems of long preparation cycle and complicated preparation process, and achieve the effects of fast strain detection, simple preparation and low cost

Inactive Publication Date: 2015-05-13
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this sensor has disadvantages such as complex preparation process and long preparation period.

Method used

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  • Flexible wearable paper-based strain sensor and preparation method thereof
  • Flexible wearable paper-based strain sensor and preparation method thereof
  • Flexible wearable paper-based strain sensor and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0030] A method for preparing a flexible wearable paper-based strain sensor, the method steps are as follows:

[0031] (1) Cut the printing paper into a rectangular shape of the specified size to make an insulating layer;

[0032] (2) Use a pen containing graphite to blacken the surface of the printing paper cut in step (1) to form a continuous and uninterrupted graphite film to make a conductive layer;

[0033] (3) The two ends of the conductive layer obtained in step (2) along the length direction were connected to wires and fixed with conductive silver glue to obtain a flexible wearable paper-based strain sensor.

[0034] The material for making the insulating layer is not limited to the above-mentioned printing paper, and other materials can also be used, including: the paper base material for making the insulating layer is not limited to the printing paper, filter paper, test paper and other flexible papers with rough surfaces.

[0035] Pens containing graphite for makin...

Embodiment 1

[0038] (1) Cut the printing paper with a thickness of 100 microns into a rectangle with a length of 4 cm and a width of 0.5 cm;

[0039] (2) Use a 2B pencil to blacken the surface of the printing paper cut in step (1) to form a continuous graphite film. The microstructure of the graphite film is as follows: image 3 shown;

[0040](3) Lead wires from both ends of the printing paper obtained in step (2) along the length direction with silver glue to obtain a flexible wearable paper-based strain sensor. The structure diagram is as follows figure 1 shown;

[0041] (4) Fix the sensor obtained in step (3) with a length of 4 cm and a width of 0.5 cm on the finger with double-sided tape, and then it can be used for bending detection of the finger.

Embodiment 2

[0043] (1) Cut the filter paper with a thickness of 500 μm into a rectangle with a length of 2 cm and a width of 1 cm;

[0044] (2) Use a 2B pencil to blacken the surface of the printing paper cut in step (1) to form a continuous graphite film. The microstructure of the graphite film is as follows: image 3 shown;

[0045] (3) Lead wires from both ends of the printing paper obtained in step (2) along the length direction with silver glue to obtain a flexible wearable paper-based strain sensor. The structure diagram is as follows figure 1 shown;

[0046] (4) Fix the sensor obtained in step (3) with a length of 2 cm and a width of 1 cm in the corner of the book with double-sided tape, and then it can be used to detect the opening and closing angle of the book.

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Abstract

The invention discloses a flexible wearable paper-based strain sensor and a preparation method thereof. The flexible wearable paper-based strain sensor comprises an insulated layer, a conductive layer, a guide wire fixing unit and guide wires, wherein the insulated layer is arranged at the bottom end; the conductive layer is arranged on the upper surface of the insulated layer; one guide wire is connected to each of two ends of the conductive layer; the guide wires are connected with a measuring instrument; the insulated layer is paper base with insulating characteristic. The flexible wearable paper-based strain sensor has the benefits that of being simple to prepare, low in cost, good in product performance, simple and convenient to operate, low-carbon and environment-friendly, simple in structure, high in strain detecting speed, can be worn on finger joints, wrist junctions, knee joints of a human body, can be fixed to objects of furniture, books, building structures and the like for strain detection, and has a wide application prospect in the fields of kinesiology, structure safety monitoring, and the like.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a flexible wearable paper-based strain sensor and a preparation method thereof. Background technique [0002] A wearable device is a computing device that can be installed on people, animals and objects, and can perceive, transmit and process information. Sensors are the core components of wearable devices. Sensors have wearable properties and have important potential for adaption in the fields of intelligent transportation, consumer electronics, medical equipment, smart home, industrial control, aviation and military industry. A strain sensor is a sensor that can be used to detect objects that are deformed by external forces or driven by themselves. With the continuous development of science and technology and the continuous improvement of people's material conditions, the demand for flexible and sensorable electronic devices is increasing. There are a wide variety of wearable devices c...

Claims

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Application Information

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IPC IPC(8): G01B7/16
Inventor 张跃廖新勤闫小琴梁齐杰
Owner UNIV OF SCI & TECH BEIJING
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