Wearable flexible stress sensor and preparation method and application thereof

A stress sensor, flexible technology, applied in applications, instruments, measuring force, etc., can solve problems such as troublesome steps, pollution, and high consumption, and achieve the effects of easy detection, high sensitivity, and low cost
CN109238522APending Publication Date: 2019-01-18NANKAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NANKAI UNIV
Publication Date
2019-01-18

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Abstract

The invention relates to a wearable flexible stress sensor and a preparation method and application thereof. Firstly, functional ink suitable for screen printing is prepared, and is printed on a wearable substrate through a screen printing method, and the stress sensor of a desired specification is produced. The stress sensor is used for monitoring physical deformation of stretching, bending, touching and the like from small ranges to large ranges, and has multiple application in the electronic skin fields and the biomedical application fields of human skins, expressions, pulses, heartbeats and the like, the human-computer interaction fields and the fields of virtual reality, entertainment technology and the like. The flexible stress sensor of the invention has the following advantages that the sensor has excellent stretching elasticity, and stretching strain can reach 100%; sensitivity is extremely high, and a sensitivity parameter (Gauge Factor) can be up to 8000 or more; linear relationships of working curves are excellent, stretching repeatability is good, and a stretching cycle lag is small; and a preparation process is simple, costs are low, massive integrated-device preparation is suitable, and application prospects are wide.
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Description

technical field

[0001] The invention relates to a wearable flexible stress sensor and its preparation method and application, in particular to a wearable stress sensor with high sensitivity and large deformation based on a printing method and its preparation method and application. It is mainly used to monitor physical deformations ranging from small to large, such as stretching, bending, touching, etc. There are many applications in the fields of human joints, expressions, pulse, heartbeat and other electronic skin and biomedical applications, human-computer interaction, virtual reality and entertainment technology. Background technique

[0002] Wearable mechanical sensors hold great promise due to their wide range of applications. As a mechanical sensor with good performance, it needs to meet many requirements such as: high sensitivity, large stretchability, fast response speed, good stability, low preparation cost and batch preparation, etc.

[0003] If the stretch sens...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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