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Resistance-type stretchable multi-axis force sensing yarn

A resistive, multi-dimensional force technology, applied in the direction of yarn, textiles and papermaking, can solve the problem of not being able to measure multi-dimensional forces such as stretching, bending and torsion at the same time, and achieve good elasticity, reduced slip, and good stability. Effect

Inactive Publication Date: 2017-06-27
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the resistive sensing yarn technology disclosed in the existing invention cannot meet the requirements of simultaneous measurement of multi-dimensional forces such as stretching, bending and torsion.

Method used

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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  • Resistance-type stretchable multi-axis force sensing yarn
  • Resistance-type stretchable multi-axis force sensing yarn
  • Resistance-type stretchable multi-axis force sensing yarn

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: First, the conductive nylon filament is wrapped around the spandex fiber with a certain wrapping angle in the Z twist direction, and then wrapped in the S twist direction to obtain a negative Poisson's ratio structured yarn with Z twist in the inner layer and S twist in the outer layer Wire. The pre-stretching process diagram of the conductive treatment of elastic covered yarn is shown in Figure 5 As shown, according to the design of the sizing process, the yarn is impregnated under a certain stretching state, so that the yarn is fully adsorbed, and the yarn is stretched by using the speed difference between the two pressing rollers, which is convenient for realizing industrial chemical production.

[0031] Due to the unique helical covering structure, the yarn sensor has greater stretchability and better reversibility. When the yarn is stretched and deformed, the microscopic helical structure of the yarn is also changing. The change of the helical structur...

Embodiment 2

[0032] Embodiment 2: Refer to Embodiment 1 for the negative Poisson's ratio yarn manufacturing method, but adopt the method of wrapping the inner layer of the core yarn with Z twist in the outer layer of nylon, and refer to Embodiment 1 for the method of conductive treatment. The negative Poisson’s ratio yarn sensor with S twist on the inner layer and Z twist on the outer layer has the same resistance response as in Example 1 when stretched and bent, but the resistance change when twisted is opposite to that of Example 1, clockwise Twisting the yarn is tight inside and loose outside, and the contact between the inner and outer wrapping yarns is reduced, and the contact resistance becomes smaller, so that the resistance of the negative Poisson’s ratio yarn decreases. The contact becomes larger and the overall yarn resistance increases.

[0033] It can be seen that the resistive stretchable multi-dimensional force sensing yarn of the present invention can not only achieve high s...

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Abstract

The invention relates to resistance-type stretchable multi-axis force sensing yarn. The resistance-type stretchable multi-axis force sensing yarn comprises a piece of core yarn and two pieces of fasciated yarn, a yarn body is formed by winding one piece of fasciated yarn on the core yarn in a helical mode, and wrap yarn is formed by winding the other piece of fasciated yarn on the yarn body in a helical mode in the opposite helical direction of the previous piece of fasciated yarn; the wrap yarn is of a negative poisson's ratio yarn structure, and subjected to conductive treatment. The requirements that the yarn is seamlessly embedded into traditional clothing to achieve interference-free real-time monitoring of human body functional motions and activities can be met.

Description

technical field [0001] The invention relates to the technical field of textile engineering, in particular to a resistive stretchable multi-dimensional force sensing yarn. Background technique [0002] With the rapid development of wearable electronics, there is an increasing demand for flexible strain sensors whose unique elasticity, wear resistance, and scalability can cover three-dimensional surfaces. Compared with traditional sensors, flexible sensors have the characteristics of softness, comfort, wearability, portability and concealment, and are widely used in body movement posture monitoring and health status detection. In order to detect strain signals, such as body strain (perspiration rate, heart rate, etc.), joint motion, body movements, etc., the sensor should be flexible, wear-resistant, breathable, comfortable and concealed. The testing principle of the textile strain sensor is that the conductive textile deforms with the physiological activities of the human bo...

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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Application Information

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IPC IPC(8): D02G3/36D02G3/34D02G3/04D02G3/32D02G3/44D02G3/26
CPCD02G3/045D02G3/26D02G3/32D02G3/34D02G3/36D02G3/441D10B2321/022D10B2331/02D10B2331/04D10B2331/10D10B2401/061D10B2401/16
Inventor 胡吉永周淑雯张和乐孟粉叶杨旭东晏雄
Owner DONGHUA UNIV
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