Ambulatory Monitoring Using Knitted 3D Helical Coils

Fobelets, Kristel; Panteli, Christoforos

doi:10.3390/engproc2022015006

Cited by 4 publications

(2 citation statements)

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“…Inductive sensors can be used in a variety of environments, one of which is non-contact body sensing networks. Application areas include respiration monitoring [1], ambulatory monitoring [2] and wireless power transfer [3]. Sensors require not only appropriate sensing characteristics but also readout electronics to transform the signal into practical data for further processing.…”

Section: Introductionmentioning

confidence: 99%

Respiratory Inductive Plethysmography System for Knitted Helical Coils

Kiener

Anand

Fobelets

et al. 2022

The 3rd International Conference on the Challenges, Opportunities, Innovations and Applications in Electronic Textiles

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Section: Introductionmentioning

confidence: 99%

Respiratory Inductive Plethysmography System for Knitted Helical Coils

Kiener

Anand

Fobelets

et al. 2022

The 3rd International Conference on the Challenges, Opportunities, Innovations and Applications in Electronic Textiles

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“…The same principle of the 3D knitted helical coil works for various other applications as well. For instance, by changing the dimension of the helical 3D coil, the garments can be worn on the arms, knees, fingers, etc., to measure the joint movements [21]. The folding of a two-dimensional (2D) planar coil can also be employed to measure joint movements [22].…”

Section: Introductionmentioning

confidence: 99%

Wearable Inductive Sensing of the Arm Joint: Comparison of Three Sensing Configurations

2022

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Currently, there is a rapidly growing interest and demand for wearable textile sensors that can monitor human motions in a naturalistic environment. Some potential applications for this technology include research on measuring the motor skill performance of patients with motor disabilities such as autism spectrum disorder, Parkinson’s disease, cerebral palsy, and stroke and evaluating the efficacy of applied treatments. Among wearable sensors, inductive sensors that are made from highly conductive threads are attractive due to their easy development process, high reliability, and low cost. In this study, we analyzed and compared the performance of three inductive wearable sensor configurations—(1) single planar rectangular coil, (2) two separated coils connected in series, and (3) two helical coils connected in series—in terms of the change in the resonant frequency of the tank circuit they comprised as a result of the change in elbow joint angle through simulations. Three parameters of length, width, and the number of turns were considered to calculate sensor sensitivity to the joint angle. The coil with the highest sensitivity was then fabricated and measured, and its performance was compared with the simulation results. The proposed methodology can be extended to sensing other joints in the body such as the shoulders, fingers, and knees.

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