Imperial College London
Portrait Picture

ProfessorKristelFobelets

Faculty of Engineering, Department of Electrical and Electronic Engineering

Professor of Nanodevices
 
 
 
//

Contact

 

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

 
 
//

Assistant

 

Ms Susan Brace +44 (0)20 7594 6215

 
//

Location

 

714Electrical EngineeringSouth Kensington Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Fobelets:2020:10.1016/j.sna.2020.111945,
author = {Fobelets, K},
doi = {10.1016/j.sna.2020.111945},
journal = {Sensors and Actuators A: Physical},
pages = {1--5},
title = {Knitted coils as breathing sensors},
url = {http://dx.doi.org/10.1016/j.sna.2020.111945},
volume = {306},
year = {2020}
}
Download

RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A new implementation of a wearable respiratory inductive plethysmography garment is obtained by knitting a 250 μm thin insulted Cu wire simultaneously with yarn in the round. This was used to integrate a knitted coil in the body of a baby romper suit. During simulated breathing the diameter of knitted coil changes by stretching the knit circularly, causing a variation of the self-inductance of the coil. Coils with 5 rows of integrated metal wire with different stitch types and patterns were investigated to determine their influence on inductance, series resistance and sensitivity. We observed that knit styles that reduce the resistance of the coil, such as lace and jacquard also reduce the inductance and flexibility of the garment. Jacquard with three colours and one metal wire for each colour, gave the highest coil quality factor but also the poorest flexibility. We found that 1/1 rib stitch has the highest self-inductance for all yarn types. Its sensitivity of 0.5 – 0.6 μH/cm is similar to stockinette stitch except when elastic viscose yarn is used. Coils in stockinette stitch and elastic viscose yarn have the highest sensitivity of 0.84 μH/cm. No hysteresis in self-inductance was observed for circumference variations between 44 and 53 cm of the body of the baby romper in 1/1 rib stitch due to the elasticity of knitted garments.
AU  - Fobelets,K
DO  - 10.1016/j.sna.2020.111945
EP  - 5
PY  - 2020///
SN  - 0924-4247
SP  - 1
TI  - Knitted coils as breathing sensors
T2  - Sensors and Actuators A: Physical
UR  - http://dx.doi.org/10.1016/j.sna.2020.111945
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000534580000004&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - https://www.sciencedirect.com/science/article/pii/S092442471931711X?via%3Dihub
UR  - http://hdl.handle.net/10044/1/80275
VL  - 306
ER  -
Download