Design, Calibration and Experimentation of an Epidermal RFID Sensor for Remote Temperature Monitoring

摘要: An epidermal radiofrequency identification technology (RFID) sensor consists of a flexible antenna provided with and sensing microchip directly stuck over the human skin by means sub-millimeter bio-compatible membrane. A compact-size RFID thermometer is here proposed extensively experimented concerning its electromagnetic thermal performance in case battery-less battery-assisted configurations. The element embeds mechanism for post-manufacturing frequency retuning order to adapt response specific placement body. When attached skin, readable from up 0.7 m mode 2.3 mode. calibration procedure improved accuracy IC down 0.18 °C. time constant evaluated first-order impulse heating (photo-flash) resulted 4.3 s. wireless was both supervised applications (manual reading) un-supervised architectures where users were continuously monitored fixed remote or during crossing surveillance gate. In all considered cases, reliability interrogation link experimentally quantified robust health monitoring clinical domestic settings even automatic detection anomalous temperature peaks people walking within airports at country border crossing.