Fig. 6From: Comparison of two devices for respiratory impedance measurement using a forced oscillation technique: basic study using phantom modelsEffects of the tidal volume on impedance measured with IOS (a), MG-pulse (b), and MG-noise (c) when the RC model was ventilated at a respiratory frequency of 20/min. Plotted data are the values of three measurements. Tidal volume (TV) was set at 0, 0.5, 1.0, and 1.5 lBack to article page