Differential pressure flowmeter with enhanced signal processing

Measuring and testing – Instrument proving or calibrating – Volume of flow – speed of flow – volume rate of flow – or mass...

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7386152, 73 4R, 128725, G01F 136

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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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