Measurement of pressure distribution on a membrane of a pump for biomedical applications through capacitive film sensors

In this work, a capacitive sensor matrix is proposed for the measurement of the time history of pressure distribution on the membrane of a pump for biomedical applications. Capacitive sensor matrix are usually employed for quasi-static analysis, thus specific calibration methods are proposed for the metrological characterization of the measurement system. Pressure measurements are then performed to provide information about the loads acting on the most critical components of the pump.