Recent developments in flexible wearable electronics for monitoring applications

Tang, Sharon Lam Po

doi:10.1177/0142331207070389

Cited by 121 publications

(63 citation statements)

References 33 publications

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“…Flexible electronics based on polymer substrates attract a great deal of attention for applications as diverse as displays, 1,2 stretchable 3 and wearable computing, 4 and photovoltaic cells. 5,6 In all cases the devices are multilayer structures with thin film stacks including inorganic diffusionbarrier and electrode layers.…”

Section: Introductionmentioning

confidence: 99%

Electrofragmentation modeling of conductive coatings on polymer substrates

Leterrier

Pinyol

Rougier

et al. 2009

Journal of Applied Physics

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Damage occurring under tensile loading and the resulting increase in electrical resistance of tin-doped indium oxide and amorphous graphite coatings on various polymer substrates are investigated, using an electrofragmentation method in situ in an optical microscope. The electrical resistance is modeled as a function of damage state assuming that the resistance of coating cracks is proportional to their opening, and that there exists a conducting path of constant thickness at the coating/substrate interface across the crack. The model reproduces the experimental data with good accuracy apart from the damage initiation and saturation stages where it underestimates the measured coating resistance. This is due to the presence of stable cracks of finite length in the initiation stage and delamination in the saturation stage. Impedance spectroscopy measurements confirm the purely resistive nature of the conducting path, whose resistivity is found to be three to four orders of magnitude higher than that of the uncracked coating.

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Section: Introductionmentioning

confidence: 99%

Electrofragmentation modeling of conductive coatings on polymer substrates

Leterrier

Pinyol

Rougier

et al. 2009

Journal of Applied Physics

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“…Developments in wireless and low power portable electronics have led to new applications for wearable electronics in consumer products and healthcare monitoring [1,2]. A drawback of current electronics is that battery lifetime is limited.…”

Section: Introductionmentioning

confidence: 99%

Kinetic energy harvesting from human walking and running using a magnetic levitation energy harvester

Berdy

Valentino

Peroulis

2015

Sensors and Actuators A: Physical

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“…A number of prototypes have been developed in recent years, and few of them are available in the commercial market [12,25]. There are some minor issues related with the flexibility, robustness, textile character, movement artefacts, and comfortableness; however, keeping in view the extent of research occurring in wearable electronics, sooner than later these issues will be resolved and the customer/patient will be able to buy these systems off the shelves [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Uncertainty Analysis of the Temperature–Resistance Relationship of Temperature Sensing Fabric

Husain

Atalay

et al. 2016

Fibers

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This paper reports the uncertainty analysis of the temperature-resistance (TR) data of the newly developed temperature sensing fabric (TSF), which is a double-layer knitted structure fabricated on an electronic flat-bed knitting machine, made of polyester as a basal yarn, and embedded with fine metallic wire as sensing element. The measurement principle of the TSF is identical to temperature resistance detector (RTD); that is, change in resistance due to change in temperature. The regression uncertainty (uncertainty within repeats) and repeatability uncertainty (uncertainty among repeats) were estimated by analysing more than 300 TR experimental repeats of 50 TSF samples. The experiments were performed under dynamic heating and cooling environments on a purpose-built test rig within the temperature range of 20-50 • C. The continuous experimental data was recorded through LabVIEW-based graphical user interface. The result showed that temperature and resistance values were not only repeatable but reproducible, with only minor variations. The regression uncertainty was found to be less than ±0.3 • C; the TSF sample made of Ni and W wires showed regression uncertainty of <±0.13 • C in comparison to Cu-based TSF samples (>±0.18 • C). The cooling TR data showed considerably reduced values (±0.07 • C) of uncertainty in comparison with the heating TR data (±0.24 • C). The repeatability uncertainty was found to be less than ±0.5 • C. By increasing the number of samples and repeats, the uncertainties may be reduced further. The TSF could be used for continuous measurement of the temperature profile on the surface of the human body.

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Recent developments in flexible wearable electronics for monitoring applications

Cited by 121 publications

References 33 publications

Electrofragmentation modeling of conductive coatings on polymer substrates

Electrofragmentation modeling of conductive coatings on polymer substrates

Kinetic energy harvesting from human walking and running using a magnetic levitation energy harvester

Uncertainty Analysis of the Temperature–Resistance Relationship of Temperature Sensing Fabric

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