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Passive wireless respiratory sensor
2021
Electronics Letters
Monitoring respiratory characteristics is an important method to monitor sleep respiratory diseases such as obstructive sleep apnea syndrome (OSAS). In this letter, a passive wireless respiratory sensor is developed, which is based on a surface acoustic wave (SAW) microsensor using graphene oxide as a sensitive layer. The developed sensor is placed on the upper lip below the nose, which monitors human's breathing by detecting the humidity changes while inhale and exhale. To meet the fast
doi:10.1049/ell2.12248
fatcat:dgyv7kgzhvd3tdc43eey7ls5w4