Imperial College London
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ProfessorKristelFobelets

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Nanodevices
 
 
 
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Contact

 

+44 (0)20 7594 6236k.fobelets Website CV

 
 
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Assistant

 

Ms Susan Brace +44 (0)20 7594 6215

 
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Location

 

714Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kiener:2022:10.1109/jsen.2021.3131267,
author = {Kiener, K and Anand, A and Fobelets, W and Fobelets, K},
doi = {10.1109/jsen.2021.3131267},
journal = {IEEE Sensors Journal},
pages = {1374--1381},
title = {Low power respiration monitoring using wearable 3D knitted helical coils.},
url = {http://dx.doi.org/10.1109/jsen.2021.3131267},
volume = {22},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - We demonstrate a novel low power inductive wearable plethysmography system. This consists of ultra-sensitive 3D knitted helical coils integrated in a garment and an oscillator circuit with high quality factor. The low power oscillator is built using two cross coupled FET pairs with low capacitance drawing only 95 μA during operation and with a response time smaller than 10 μs . The sensor system is linear, with negligible hysteresis. The best compromise in sensitivity and power consumption is obtained with a 3D knitted helical coil using jersey knit with elastic yarn, a lower knitting needle size than recommended for the yarn and minimizing both the number of stitches per winding as well as the stitches containing metal. A sensitivity of 2.7 kHz per mm change in circumference with a power consumption of 6.85 mW per 30 ms measurement time is reported. This system can be used for long term breathing monitoring using a garment indistinguishable from everyday clothing.
AU  - Kiener,K
AU  - Anand,A
AU  - Fobelets,W
AU  - Fobelets,K
DO  - 10.1109/jsen.2021.3131267
EP  - 1381
PY  - 2022///
SN  - 1530-437X
SP  - 1374
TI  - Low power respiration monitoring using wearable 3D knitted helical coils.
T2  - IEEE Sensors Journal
UR  - http://dx.doi.org/10.1109/jsen.2021.3131267
UR  - https://ieeexplore.ieee.org/document/9627916
UR  - http://hdl.handle.net/10044/1/93723
VL  - 22
ER  -
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