Experimental evaluation of intravascular flow meter and miniature RFID antennas using MEMS pressure sensors and flexible PCD techniques
Timpson, Erik Joseph
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A testbed for flow meters was built and validated. The testbed targeted intravascular pressure and flow monitoring applications. The testbed consists of a data acquisition system and two MEMS pressure sensors (SM5108). For simplicity the evaluation of the testbed was performed using air flow. Air was pumped across a simulated blockage and pressure was built up to intravascular pressure ranges (35 to 230 mmHg). The base fractional flow rate (FFR) equation was used to calculate flow, hinting that the SM5108 pressure sensors can become part of an implantable flow meter. In addition, small and flexible RFID coil antennas were designed, built and tested. Measurements show that enough power can be collected by the coil antennas to power a microchip.
Table of Contents
Introduction -- Background -- The designed and identified solution -- Uncertainty analysis -- Future work -- Summary and concluding remarks -- Appendix