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Capacitive Humidity Sensor Tag Monitoring System Using the Capacitive to Voltage Converter (CVC)

  • Chang Won Lee
  • Seung Joon Lee
  • Minchul Kim
  • Yeosun Kyung
  • Kihwan Eom
Conference paper
  • 738 Downloads
Part of the Communications in Computer and Information Science book series (CCIS, volume 195)

Abstract

Recently, interesting in RFID sensor tag technology which can read information on smart card is increasing worldwide. Most of sensor tag has been developed as resistive type sensor tags. Resistive type humidity sensor requires temperature revision as the influence of temperature and there are special environment to detect low humidity of 15% or less. To solve this problem, circuit was composed that capacitive sensor is interlocked to resistive type sensor tag. The composed circuit is a capacitive humidity sensor which is connected to resistive sensor tags. Using the CVC circuit, capacitive humidity sensor change is output voltage. The output voltage connects with resistive sensor tag. Implemented system’s sensor value storage or real time monitoring experiment result was able to determine the usefulness.

Keywords

Capacitive sensor Capacitive to Voltage Converter RFID Reader Sensor tag Humidity sensor 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Chang Won Lee
    • 1
  • Seung Joon Lee
    • 1
  • Minchul Kim
    • 1
  • Yeosun Kyung
    • 1
  • Kihwan Eom
    • 1
  1. 1.Department of Electronic EngineeringDongguk UniversitySeoulKorea

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