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Evaluation of a constant temperature hot wire anemometer for respiratory gas flow measurements



Evaluation of a constant temperature hot wire anemometer for respiratory gas flow measurements



Medical & Biological Engineering & Computing 17(2): 211-215



The performance of a constant-temperature hot-wire anemometer for respiratory gas-flow measurement was investigated. The anemometer satisfies common demands for accuracy, response time and insensitivity to humidity and temperature variations. A calibration method is suggested that permits correction for variation of the flowmeter signal caused by changes in the gas composition. A procedure for linearization of the flowmeter signal as a function of flow rate is presented.

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Accession: 005395023

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PMID: 155766



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