Design, Fabrication, and Wireless Evaluation of a Passive 3D-printed Moisture Sensor on a Textile Substrate

Xiaochen Chen, Han He, Zahangir Khan, Lauri Sydänheimo, Leena Ukkonen, Johanna Virkki

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

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This paper introduces the first steps of fabrication and the initial wireless performance evaluation of a passive ultra-high frequency (UHF) radiofrequency identification (RFID)-based moisture sensor on a textile substrate. The sensor antenna was embroidered on a stretchable fabric firstly, and then embedded inside a 3D-printed platform. This 3D-printed sensor material changes its properties permanently, after exposure to a high moisture environment. Thus, the sensor can detect the increased moisture in the environment. Based on our initial results, this information can be clearly read from the changed backscattered signal of the embedded passive RFID tag. The fabricated sensor has an initial peak read range of 6 meters. After being dipped into water for 2 hours, the read range of the sensor has a significant decrease, but it is still readable from 5 meters. Thus, this moisture sensor can be read wirelessly from a convenient distance, when considering practical use of moisture sensors.

Original languageEnglish
Title of host publication2019 PhotonIcs and Electromagnetics Research Symposium
Subtitle of host publicationSpring (PIERS-Spring)
Number of pages4
ISBN (Electronic)978-1-7281-3403-1
ISBN (Print)978-1-7281-3404-8
Publication statusPublished - Jun 2019
Publication typeA4 Article in conference proceedings
EventPhotonIcs & Electromagnetics Research Symposium - Rome, Italy
Duration: 17 Jun 201920 Jun 2019

Publication series

NameProgress in Electromagnetics Research Symposium
ISSN (Print)1559-9450
ISSN (Electronic)1931-7360


ConferencePhotonIcs & Electromagnetics Research Symposium

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials


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