• Measurement of three independent components in impedance sensors using a single square wave 

    Lario García, Javier; Pallàs Areny, Ramon (Elsevier, 2003-12-17)
    Article
    Accés obert
    Two-wire impedance-based sensors involving electrolytes add the impedance of the electrodes to the electrical impedance of the medium to measure. An equivalent circuit for the measured impedance is a resistance in series ...
  • Quadrature synchronous sampling for electrical impedance plethysmography implemented on an MSP432 microcontroller 

    Sánchez Sanabria, José Miguel (Universitat Politècnica de Catalunya, 2017-02-27)
    Projecte Final de Màster Oficial
    Accés obert
    The developed project allows getting IPG through Quadrature Synchronous Sampling using the new 32 bit MCU MSP432 from texas instruments. It is able to work from ranged frequencies 10 kHz to 1 MHz with a precision of 14 ...
  • Subsurface resistivity measurements using square waveforms 

    Gasulla Forner, Manuel; Jordana Barnils, José; Pallàs Areny, Ramon; Torrents Dolz, Josep M. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1998-02-28)
    Article
    Accés obert
    This work analyzes the effect of inductive and capacitive coupling between the injecting circuit and the detecting circuit in resistive field surveys. Theoretical and experimental results demonstrate that if a square ...