Title :
An RFID-enabled inkjet-printed soil moisture sensor on paper for “smart” agricultural applications
Author :
Sangkil Kim ; Taolan Le ; Tentzeris, Manos M. ; Harrabi, Amal ; Collado, Ana ; Georgiadis, Apostolos
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
In this paper, an RFID-enabled inkjet-printed passive soil moisture sensor on paper for agricultural applications is presented and the design procedure, the operation principle and benchmarking experimental results are discussed in detail. A prototype made of a passive RFID tag integrated with a capacitive sensor, which consists of a printed interdigitated capacitor (IDC), has been printed on a low-cost paper substrate. The capacitance variation of the IDC shifts the resonant frequency of the RFID tag taking advantage of the soil-moisture based load matching variations since a matching condition changes due to the capacitive sensor. The proposed sensor can be easily integrated with conventional RFID systems for practical large-scale agricultural applications.
Keywords :
agriculture; moisture; radiofrequency identification; sensors; IDC; RFID-enabled inkjet-printed soil moisture sensor; capacitive sensor; low-cost paper substrate; passive RFID tag; printed interdigitated capacitor; radiofrequency identification; smart agricultural application; soil-moisture based load matching; Capacitive sensors; Radiofrequency identification; Resonant frequency; Soil measurements; Soil moisture; Wireless sensor networks; RFID-enabled sensor; inkjet printing; paper electronics; soil moisture sensor;
Conference_Titel :
SENSORS, 2014 IEEE
Conference_Location :
Valencia
DOI :
10.1109/ICSENS.2014.6985301
