Title
Multimodal physiological sensor for motion artefact rejection.
Abstract
This work introduces a novel physiological sensor, which combines electrical and mechanical modalities in a co-located arrangement, to reject motion-induced artefacts. The mechanically sensitive element consists of an electret condenser microphone containing a light diaphragm, allowing it to detect local mechanical displacements and disregard large-scale whole body movements. The electrically sensitive element comprises a highly flexible membrane, conductive on one side and insulating on the other. It covers the sound hole of the microphone, thereby forming an isolated pocket of air between the membrane and the diaphragm. The co-located arrangement of the modalities allows the microphone to sense mechanical disturbances directly through the electrode, thus providing an accurate proxy to artefacts caused by relative motion between the skin and the electrode. This proxy is used to reject such artefacts in the electrical physiological signals, enabling enhanced recording quality in wearable health applications.
Year
DOI
Venue
2014
10.1109/EMBC.2014.6944193
EMBC
Keywords
Field
DocType
electrode,enhanced recording quality,bioelectric potentials,biomedical electrodes,electret condenser microphone,microphones,electroencephalography,local mechanical displacements,mechanically sensitive element,medical signal processing,highly flexible membrane,colocated arrangement,mechanical modalities,wearable health applications,capacitors,light diaphragm,mechanical disturbances,multimodal physiological sensor,electrets,motion artefact rejection,isolated pocket,electrical physiological signals,membranes,eeg,electrical modalities,motion-induced artefacts,skin
Computer vision,Electret,Computer science,Wearable computer,Relative motion,Electrical conductor,Electronic engineering,Artificial intelligence,Acoustics,Electrode,Microphone
Conference
Volume
ISSN
Citations 
2014
1557-170X
0
PageRank 
References 
Authors
0.34
0
4
Name
Order
Citations
PageRank
Valentin Goverdovsky172.26
David Looney2618.04
Preben Kidmose33611.27
Danilo P. Mandic475853.53