Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...
Patent
1992-09-23
1994-09-20
Goldstein, Herbert
Measuring and testing
Instrument proving or calibrating
Volume of flow, speed of flow, volume rate of flow, or mass...
7386152, 73 4R, 128725, G01F 136
Patent
active
053478436
ABSTRACT:
A pressure differential flowmeter for respiratory flow measurement having enhanced signal processing. The non-linear nature of the signal generated by the differential pressure transducer is accommodated over a wide range of flows via a bank of amplifiers having differing gains, while baseline drift is compensated for by a combined analog and digital auto-referencing technique.
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Saklad, Meyer, et al., "Pneumotachography: A New, Low-Dead space, Humidity-independent Device", Anesthesiology, vol. 5, No. 2, Aug. 1979, pp. 149-153.
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Kofoed Scott A.
Orr Joseph A.
Goldstein Herbert
Korr Medical Technologies Inc.
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