Flexible and stretchable temperature sensor in knitted structure

A technology of temperature sensor and knitting, which is applied in knitting, thermometer, weft knitting and other directions, can solve the problems of the accuracy of body temperature measurement results, etc., and achieve real-time monitoring of human body temperature, high reliability, and significant therapeutic effects

Inactive Publication Date: 2017-08-15
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this coating method prevents the temperature sensor from touching the skin, which affects the accuracy of body temperature

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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  • Flexible and stretchable temperature sensor in knitted structure
  • Flexible and stretchable temperature sensor in knitted structure
  • Flexible and stretchable temperature sensor in knitted structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1: Knitted structure flexible stretchable temperature sensor

[0025] The nickel wire (diameter: 25μm, Yancheng Yuheng Electric Heating Technology Co., Ltd.) is used as the temperature-sensitive fiber, and the computer-controlled flat knitting machine (machine number: 14) is used to form a lining with polyamide and elastic fiber in the form of a coil. Flexible and stretchable temperature sensor with weft structure ( figure 1 ), where the black yarn is temperature-sensitive fiber and the rest is the base. With the good tensile recovery of elastic fibers, the temperature sensor has good tensile and repeated tensile mechanical properties. The sensitivity of the temperature sensor is about 0.006℃ -1 , Consistent with the sensitivity of ordinary nickel wire.

Example Embodiment

[0026] Example 2: Washable fabric temperature sensor

[0027] The choice of temperature-sensitive fiber: use metal fiber platinum wire (diameter: 20μm, Shanghai Kaitai Instrument Co., Ltd.), its resistance changes with temperature, and the relationship is approximately linear, that is, ρ=ρ 0 (1+αt), where t is the temperature in Celsius at a certain moment, ρ 0 Is the resistivity of the platinum filament fiber at 0°C, α is the temperature coefficient of resistance of the material (representing the relative change in the resistance value of the material when the temperature changes by 1°C), and ρ is the resistivity of the material at t°C.

[0028] Preparation of flexible temperature sensor: using knitting technology to integrate metal fibers in the form of three-dimensional loops into knitted fabrics of any structure, such as plain weave ( figure 2 ), where the black yarn is temperature-sensitive fiber and the rest is the base.

[0029] Washing test of flexible temperature sensor: The...

Example Embodiment

[0030] Example 3:

[0031] The invention provides a knit-based flexible temperature sensor with a warp-flat structure. The copper wire (diameter: 50μm, Shanghai Jinheng Superfine Enameled Wire Co., Ltd.) is used as the temperature-sensitive fiber, and the computer-controlled flat knitting machine (machine number: 14) is used to form a warp flat structure by intertwining it with polyamide in the form of a coil. Knitted structure temperature sensor, such as image 3 As shown, the black yarns are temperature-sensitive fibers, and the rest are substrates.

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Abstract

The invention relates to a flexible and stretchable temperature sensor with a knitted structure, which includes a base body, the base body is a knitted fabric, and temperature-sensitive fibers are integrated into the base body through knitting technology. The invention can comfortably and closely fit the surface of a human body or a biological body, and realizes the purpose of long-term and real-time monitoring of the temperature of a human body.

Description

technical field [0001] The invention relates to the technical field of temperature sensors, in particular to a flexible and stretchable temperature sensor with a knitted structure. Background technique [0002] The basic physiological signals of the human body include temperature, electrocardiogram, respiration and blood pressure, among which temperature physiological signals play a pivotal role in health care. The human body achieves heat interaction and transfer with the environment by regulating the temperature of different parts of its skin. Through real-time and continuous monitoring of human body temperature, not only can it be judged whether the subject has a fever, but also the measured data can be processed and analyzed to provide more guidance for people's daily life, diagnosis and treatment of diseases. For example, to provide guidance on the timing of pregnancy for women who are planning to conceive, to increase the probability of conception; to provide specific...

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): D04B1/14D04B1/22D04B21/00D04B21/20G01K7/22
CPCD04B1/14D04B1/22D04B21/00D04B21/20D10B2101/12D10B2101/122D10B2101/14D10B2101/20D10B2331/02D10B2401/16G01K7/22
Inventor 李乔丁辛张丽娜王宇驰
Owner DONGHUA UNIV
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