Experimental Assessment of a Variable Orifice Flowmeter for Respiratory Monitoring
Joint Authors
Schena, Emiliano
Saccomandi, Paola
Massaroni, Carlo
Tardi, Giuseppe
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-30
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Accurate measurement of gas exchanges is essential in mechanical ventilation and in respiratory monitoring.
Among the large number of commercial flowmeters, only few kinds of sensors are used in these fields.
Among them, variable orifice meters (VOMs) show some valuable characteristics, such as linearity, good dynamic response, and low cost.
This paper presents the characterization of a commercial VOM intended for application in respiratory monitoring.
Firstly, two nominally identical VOMs were calibrated within ±10 L·min−1, to assess their metrological properties.
Furthermore, experiments were performed by humidifying the air, to evaluate the influence of vapor condensation on sensor’s performances.
The condensation influence was investigated during two long lasting trials (i.e., 4 hours) by delivering 4 L·min−1 and 8 L·min−1.
Data show that the two VOMs’ responses are linear and their response is comparable (sensitivity difference of 1.4%, RMSE of 1.50 Pa); their discrimination threshold is <0.5 L·min−1, and the settling time is about 66 ms.
The condensation within the VOM causes a negligible change in sensor sensitivity and a very slight deterioration of precision.
The good static and dynamic properties and the low influence of condensation on sensor’s response make this VOM suitable for applications in respiratory function monitoring.
American Psychological Association (APA)
Tardi, Giuseppe& Massaroni, Carlo& Saccomandi, Paola& Schena, Emiliano. 2015. Experimental Assessment of a Variable Orifice Flowmeter for Respiratory Monitoring. Journal of Sensors،Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1070190
Modern Language Association (MLA)
Tardi, Giuseppe…[et al.]. Experimental Assessment of a Variable Orifice Flowmeter for Respiratory Monitoring. Journal of Sensors No. 2015 (2015), pp.1-7.
https://search.emarefa.net/detail/BIM-1070190
American Medical Association (AMA)
Tardi, Giuseppe& Massaroni, Carlo& Saccomandi, Paola& Schena, Emiliano. Experimental Assessment of a Variable Orifice Flowmeter for Respiratory Monitoring. Journal of Sensors. 2015. Vol. 2015, no. 2015, pp.1-7.
https://search.emarefa.net/detail/BIM-1070190
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1070190