A Battery-less NFC Sensor Transponder for Cattle Health Monitoring

This paper presents the design and assessment of a battery-less NFC sensor transponder to measure biomarkers in the tear fluid of cattle eyes. A battery-less NFC temperature sensor prototype with a diameter of 22 mm is developed for the feasibility analysis of cattle health monitoring. With a measured wireless communication range of 44 mm, the developed NFC sensor prototype is shown to be a potential solution for wireless power and data transfer. In addition, the design method to develop a screen-printed, NFC-enabled smart contact lens for next-generation cattle health monitoring is also presented.