Exploració per tema "Normal breathing"

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    • Reduction of motion artifacts using a two-frequency impedance plethysmograph and adaptative filtering 

      Rosell Ferrer, Francisco Javier; Cohen, Kevin P.; Webster, John G. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1995-10-01)
      Article
      Accés obert
      We measured transthoracic impedance in nine presumed healthy adult subjects with a two-frequency plethysmograph at 57 kHz and 185 kHz. The measurement protocol included periods of normal breathing without motion and periods ...

    • Signal-to-motion artifact ratio versus frequency for impedance pneumography 

      Rosell Ferrer, Francisco Javier; Webster, John G. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1995-03-01)
      Article
      Accés obert
      We measured transthoracic impedance between 12.5 and 185 kHz in nine adults. We used a system with two impedance channels, both simultaneously detecting the real part of impedance at two different frequencies. We used only ...