Tipo di tesi
Tesi di laurea magistrale
Titolo
Progettazione, sviluppo e validazione di una piattaforma hardware portatile per sistemi di tomografia impedenza elettrica
Dipartimento
INGEGNERIA DELL'INFORMAZIONE
Corso di studi
INGEGNERIA BIOMEDICA
Parole chiave
- Arduino
- Electrical Impedance Tomography
- Howland circuit
- INA333
- PCB (Printed Circuit Board)
- piezoresistive sensor
- portable circuit
Data inizio appello
23/02/2026
Consultabilità
Non consultabile
Data di rilascio
23/02/2029
Riassunto (Inglese)
This thesis project proposes a simple and open-source solution for the development of a portable electrical impedance tomography system. The circuit is designed to measure resistance variations caused by pressures applied with different weights on a piezoresistive sensor.
The system uses readily available, low-cost electronic components, including Arduino, INA333 instrumentation amplifiers, and a custom PCB developed to handle both sensor stimulation through current injection and differential voltage measurements from the pairs of electrodes placed on the sensor.
The PCB includes a Howland current source and three multiplexers: two dedicated to stimulation and one for differential voltage measurement. The voltages are acquired in differential mode and then processed by INA333 instrumentation amplifiers; in this configuration, they are not amplified but filtered from noise, resulting in cleaner and more reliable signals.
