期刊
SENSORS
卷 9, 期 4, 页码 2574-2585出版社
MDPI
DOI: 10.3390/s90402574
关键词
Microwave sensor; respiratory movement; vital signs; tidal volume
In this paper the use of a continuous-wave microwave sensor as a non-contact tool for quantitative measurement of respiratory tidal volume has been evaluated by experimentation in seventeen healthy volunteers. The sensor working principle is reported and several causes that can affect its response are analyzed. A suitable data processing has been devised able to reject the majority of breath measurements taken under non suitable conditions. Furthermore, a relationship between microwave sensor measurements and volume inspired and expired at quiet breathing (tidal volume) has been found.
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