Passive UHF RFID Tag for Multispectral Assessmen
Metadatos
Mostrar el registro completo del ítemAutor
Escobedo Araque, Pablo; Carvajal Rodríguez, Miguel Ángel; Capitán Vallvey, Luis Fermín; Fernández-Salmerón, José; Martínez Olmos, Antonio; Palma López, Alberto JoséEditorial
MDPI
Materia
Screen printing Printed electronics Passive RFID tag Optical sensor Microcontroller Spectral fingerprint
Fecha
2016Referencia bibliográfica
Escobedo, P. [et al]. Passive UHF RFID Tag for Multispectral Assessment. Sensors 2016, 16, 1085. [http://hdl.handle.net/10481/44989]
Resumen
This work presents the design, fabrication, and characterization of a passive printed radiofrequency identification tag in the ultra-high-frequency band with multiple optical sensing capabilities. This tag includes five photodiodes to cover a wide spectral range from near-infrared to visible and ultraviolet spectral regions. The tag antenna and circuit connections have been screen-printed on a flexible polymeric substrate. An ultra-low-power microcontroller-based switch has been included to measure the five magnitudes issuing from the optical sensors, providing a spectral fingerprint of the incident electromagnetic radiation from ultraviolet to infrared, without requiring energy from a battery. The normalization procedure has been designed applying illuminants, and the entire system was tested by measuring cards from a colour chart and sensing fruit ripening.