Proposal for an improved impedance pneumograph

Abstract

Several methods of instrumenting the measurement of the variation in the transthoracic impedance with respiration in human subjects have been described in the literature. Most of these methods suffer from one or more disadvantages including non-linearity, system instability, and variation of calibration with changes in the total impedance of the subject. A… (More)
DOI: 10.1007/BF02479096

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