A Planar Fluidic Flowmeter Applicable to Respiratory Flows

[+] Author and Article Information
G. A. Parker

Department of Mechanical Engineering, University of Surrey, Guildford, United Kingdom

A. E. Hay

R.A.F. Institute of Aviation Medicine, Farnborough, United Kingdom

J. Dyn. Sys., Meas., Control 99(4), 293-299 (Dec 01, 1977) (7 pages) doi:10.1115/1.3427122 History: Received August 01, 1977; Online July 13, 2010


Tests are described on a bidirectional fluidic flowmeter for respiratory measurements using the principle first described by Tanney. Good dynamic response and acceptable linearity is achieved over most of the very wide flow range conditions encountered in respiratory flow measurements. A flow range of 380 litres/minute with a signal-to-noise ratio of 150 and a transient rate flow change of 14,500 litres/minute/second were measured for the best flowmeter configuration.

Copyright © 1977 by ASME
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