Home // ALLSENSORS 2018, The Third International Conference on Advances in Sensors, Actuators, Metering and Sensing // View article

Wireless Printed System for Humidity Monitoring

Authors:
Jose F. Salmerón
Andreas Albrecht
Silmi Kaffah
Markus Becherer
Paolo Lugli
Almudena Rivadeneyra

Keywords: cantennas coupling; flexible substrate; printed electronics; reader; resonance frequency.

Abstract:
In this work, we present a complete wireless sensory system based on a chipless strategy in the sensor part. Instead of characterizing individually the sensor element, we show the response seen by the reader antenna through inductive coupling with respect to the detection parameter, in our case, moisture content. The wireless chipless sensor consists of an LC circuit fabricated by printed techniques on a flexible substrate. This substrate is actually the element sensitive to humidity by changes in its electrical permittivity. We show the differences in the frequency response depending on the measurement point: the variation in frequency is reduced more than 3 times when measuring at the reader antenna with 10 mm distance between elements.

Pages: 65 to 69

Copyright: Copyright (c) IARIA, 2018

Publication date: March 25, 2018

Published in: conference

ISSN: 2519-836X

ISBN: 978-1-61208-621-7

Location: Rome, Italy

Dates: from March 25, 2018 to March 29, 2018