Title :
A Fully Inkjet-Printed Wireless and Chipless Sensor for CO2 and Temperature Detection
Author :
Vena, Arnaud ; Sydänheimo, Lauri ; Tentzeris, Manos M. ; Ukkonen, Leena
Author_Institution :
Tampere Univ. of Technol., Tampere, Finland
Abstract :
A study on a low-cost wireless fully inkjet-printed chipless sensor on a flexible laminate with three different inks is presented. It is based on two split ring resonator 90° oriented between each other to allow for independent responses on two polarizations. A deposit of a polymer/single walled carbon nanotube composite ink is used to allow for the detection of CO2 as well as temperature. In this paper, it is shown that the inkjet printing of a polymer-based coating on top of the sensing/reactive deposit can significantly reduce the sensitivity to CO2, whereas the temperature sensitivity stays at same. Simulations and experimental results verify the repeatability of this topology.
Keywords :
carbon compounds; carbon nanotubes; filled polymers; gas sensors; ink; ink jet printing; laminates; polymer films; resonators; temperature sensors; wireless sensor networks; C; CO2; CO2 detection; flexible laminate; low-cost wireless fully inkjet-printed chipless sensor; polarization; polymer-based coating; polymer-single walled carbon nanotube composite ink; sensing-reactive deposition; split ring resonator; temperature detection; Ink; Resistance; Sensitivity; Strips; Temperature sensors; Chipless sensor; RFID; carbon nanotubes; gas; inkjet-printing; temperature;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2014.2336838
