Flexible resistance type pressure sensor with machine-weaved structure and use thereof

A technology of resistive pressure and sensors, which is applied in the directions of sensors, applications, instruments, etc., can solve the problems of undisclosed flexible resistive pressure sensors and applications of undisclosed flexible resistive pressure sensors, so as to prevent sudden infant death syndrome and reduce the occurrence of sudden infant death syndrome. rate effect

Inactive Publication Date: 2009-03-25
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the prior art does not disclose a flexible resistive pressure sensor with a woven structure, nor does it dis...

Method used

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  • Flexible resistance type pressure sensor with machine-weaved structure and use thereof
  • Flexible resistance type pressure sensor with machine-weaved structure and use thereof
  • Flexible resistance type pressure sensor with machine-weaved structure and use thereof

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Embodiment 1

[0022] Such as figure 1 Described is the structural diagram of the parallel flexible resistive pressure sensor of the present invention, which is composed of conductive fibers, and the conductive fibers are interwoven to form a woven fabric with a plain weave structure, and all warp yarns 12 of the woven fabric are connected in parallel with each other, so All weft yarns 11 of the woven fabric are connected in parallel with each other, so that the overall resistance between all warp yarns 12 and all weft yarns 11 is a function of the contact resistance between all single warp yarns 12 and weft yarns 11, and the contact resistance varies with the pressure on the fabric. Variety.

[0023] Warp yarn 12 and weft yarn 11 all select hardness as 10 7 Pa, diameter is the conductive fiber of 0.5mm, and the root number of warp yarn 12 and weft yarn 11 is all 100 ( figure 1 and image 3 Take 4 as an example), the resistivity of the warp yarn 12 is 0.1Ω·m, and the resistivity of the we...

Embodiment 2

[0032] figure 2It is a structural diagram of the series flexible resistive pressure sensor of the present invention. As shown in the figure, the difference between this embodiment and Embodiment 1 is that all the warp yarns 12 of the woven fabric are connected in parallel, and all the weft yarns 11 of the woven fabric are connected in series.

[0033] Warp yarn 12 and weft yarn 11 all select hardness as 10 7 Pa, diameter is the conductive fiber of 1mm, and the root number of warp yarn 12 and weft yarn 11 is all 50 ( figure 2 and Figure 4 Take 4 as an example), the resistivity of the warp yarn 12 is 0.01Ω·m, and the resistivity of the weft yarn 11 is 10Ω·m.

[0034] Figure 4 It is the equivalent circuit diagram of the series flexible resistive pressure sensor of the present invention, wherein the resistance RI and the resistance RC refer to the resistance of the weft yarn itself and the contact resistance at the interweaving point of the weft yarn and the warp yarn resp...

Embodiment 3

[0037] Figure 7 It is a structural schematic diagram of the sleeping posture detection strap of the present invention. As shown in the figure, the difference between this embodiment and Embodiment 1 is that the clothing base 9 is a strap, and the others are the same as Embodiment 1.

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Abstract

The invention provides a flexible resistance type pressure sensor with a woven structure, which consists of conductive fibers. The pressure sensor is characterized in that the conductive fibers are mutually interwoven into a woven fabric, all warp yarns of the woven fabric are connected with each other, all weft yarns of the woven fabric are connected with each other, and an integral resistor between all the warp yarns and all the weft yarns changes with the pressure on the woven fabric. The technical proposal of the flexible resistance type pressure sensor provides application of the flexible resistance type pressure sensor with the woven structure, which is characterized in that the flexible resistance type pressure sensor with the woven structure is applied to sleeping posture detection costume. The pressure sensor has the characteristics of flexibility, foldability and launderability, and is suitable for the detection of wearable personal physiological information and state.

Description

technical field [0001] The invention relates to a flexible resistive pressure sensor with a woven structure and its application in clothing for detecting sleeping positions, and belongs to the technical field of resistive pressure sensors and their applications. Background technique [0002] In recent years, flexible sensors with fabric structures have gradually attracted the attention of researchers at home and abroad. Compared with traditional sensors, this new type of sensor is bendable, foldable and even washable, so it is very suitable for the detection of wearable personal physiological information and status. [0003] The fabric structure refers to the knitted or woven structure of the fabric. A flexible sensor with a fabric structure means that the sensitive element of the sensor is a piece of fabric with a knitted or woven structure, that is, a knitted or woven fabric. Generally, if changes in physical quantities such as fabric shape, length, temperature, or press...

Claims

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Application Information

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IPC IPC(8): G01L1/20A61B5/103
Inventor 丁永生李龙飞
Owner DONGHUA UNIV
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