Refinement of Temperature Sensing Yarns

Lugoda, Pasindu; Dias, Tilak; Hughes‐Riley, Theodore; Morris, R

doi:10.3390/ecsa-4-04933

Cited by 9 publications

(24 citation statements)

References 6 publications

(6 reference statements)

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“…Temperature sensing yarns were produced using a method similar to that described previously [1,[23][24][25]. To produce the yarns Murata 10 kΩ Negative Temperature Coefficient (NTC) thermistors (NCP15XH103F03RC; Murata, Kyoto, Japan) were soldered onto fine copper wires.…”

Section: Temperature Sensing Yarn Fabricationmentioning

confidence: 99%

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Developing Novel Temperature Sensing Garments for Health Monitoring Applications

Lugoda

Hughes‐Riley

Oliveira

et al. 2018

Fibers

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Embedding temperature sensors within textiles provides an easy method for measuring skin temperature. Skin temperature measurements are an important parameter for a variety of health monitoring applications, where changes in temperature can indicate changes in health. This work uses a temperature sensing yarn, which was fully characterized in previous work, to create a series of temperature sensing garments: armbands, a glove, and a sock. The purpose of this work was to develop the design rules for creating temperature sensing garments and to understand the limitations of these devices. Detailed design considerations for all three devices are provided. Experiments were conducted to examine the effects of contact pressure on skin contact temperature measurements using textile-based temperature sensors. The temperature sensing sock was used for a short user trial where the foot skin temperature of five healthy volunteers was monitored under different conditions to identify the limitations of recording textile-based foot skin temperature measurements. The fit of the sock significantly affected the measurements. In some cases, wearing a shoe or walking also heavily influenced the temperature measurements. These variations show that textile-based foot skin temperature measurements may be problematic for applications where small temperature differences need to be measured.

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Section: Temperature Sensing Yarn Fabricationmentioning

confidence: 99%

“…This work focuses on using temperature sensing yarns, designed and characterized in earlier work [1,[23][24][25], to create a series of innovative textile sensing garments. A key component of this work was to conceptualize and identify the feasibility of developing temperature sensing textiles using temperature sensing yarns.…”

Section: Introductionmentioning

confidence: 99%

Developing Novel Temperature Sensing Garments for Health Monitoring Applications

Lugoda

Hughes‐Riley

Oliveira

et al. 2018

Fibers

Self Cite

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“…In addition, these sensors were affected by hysteresis and were unable to provide localised temperature measurements due to their large topology. Rigid surface mount temperature sensors were previously embedded within textile yarns [28][29][30]. The thickness of these yarns has been in the range of 2 mm, which significantly adds to the thickness of the resulting textile knitted or woven using these yarns [28].…”

Section: Introductionmentioning

confidence: 99%

“…Rigid surface mount temperature sensors were previously embedded within textile yarns [28][29][30]. The thickness of these yarns has been in the range of 2 mm, which significantly adds to the thickness of the resulting textile knitted or woven using these yarns [28]. Furthermore, rigid chips and large yarn diameters reduce the comfort level of the textile.…”

Section: Introductionmentioning

confidence: 99%

Flexible Temperature Sensor Integration into E-Textiles Using Different Industrial Yarn Fabrication Processes

Lugoda

Costa

Oliveira

et al. 2019

Sensors

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Textiles enhanced with thin-film flexible sensors are well-suited for unobtrusive monitoring of skin parameters due to the sensors' high conformability. These sensors can be damaged if they are attached to the surface of the textile, also affecting the textiles' aesthetics and feel. We investigate the effect of embedding flexible temperature sensors within textile yarns, which adds a layer of protection to the sensor. Industrial yarn manufacturing techniques including knit braiding, braiding, and double covering were utilised to identify an appropriate incorporation technique. The thermal time constants recorded by all three sensing yarns was <10 s. Simultaneously, effective sensitivity only decreased by a maximum of 14% compared to the uncovered sensor. This is due to the sensor being positioned within the yarn instead of being in direct contact with the measured surface. These sensor yarns were not affected by bending and produced repeatable measurements. The double covering method was observed to have the least impact on the sensors' performance due to the yarn's smaller dimensions. Finally, a sensing yarn was incorporated in an armband and used to measure changes in skin temperature. The demonstrated textile integration techniques for flexible sensors using industrial yarn manufacturing processes enable large-scale smart textile fabrication.

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“…Such systems could have had applications in stroke rehabilitation [71]. There have also been other example of incorporating temperature-sensing elements into textiles [72][73][74][75].…”

Section: Sensorsmentioning

confidence: 99%

A Historical Review of the Development of Electronic Textiles

Hughes‐Riley

Dias

Cork

2018

Fibers

Self Cite

116

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Abstract:Textiles have been at the heart of human technological progress for thousands of years, with textile developments closely tied to key inventions that have shaped societies. The relatively recent invention of electronic textiles is set to push boundaries again and has already opened up the potential for garments relevant to defense, sports, medicine, and health monitoring. The aim of this review is to provide an overview of the key innovative pathways in the development of electronic textiles to date using sources available in the public domain regarding electronic textiles (E-textiles); this includes academic literature, commercialized products, and published patents. The literature shows that electronics can be integrated into textiles, where integration is achieved by either attaching the electronics onto the surface of a textile, electronics are added at the textile manufacturing stage, or electronics are incorporated at the yarn stage. Methods of integration can have an influence on the textiles properties such as the drapability of the textile.

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Refinement of Temperature Sensing Yarns

Cited by 9 publications

References 6 publications

Developing Novel Temperature Sensing Garments for Health Monitoring Applications

Developing Novel Temperature Sensing Garments for Health Monitoring Applications

Flexible Temperature Sensor Integration into E-Textiles Using Different Industrial Yarn Fabrication Processes

A Historical Review of the Development of Electronic Textiles

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