Thin film based flexible current clamp sensor for green wireless sensor networks

  • Takahiro Yamashita
  • , Yi Zhang
  • , Hironao Okada
  • , Toshihiro Itoh
  • , Ryutaro Maeda

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

9 Scopus citations

Abstract

This paper presents a novel film based flexible clamp type current sensor for green wireless sensor networks fabricated by printed silver paste coil using the process technology in screen-printing as a low cost, simple, and rapid method. Since developed sensor has high flexibility, it can be used by winding the cable and drastically reduce the installation space. In addition, it can construct wireless sensor networks easily because wireless terminals can drive autonomously without external power supply by utilizing the secondary current generated in the coil of the sensor by electromagnetic induction. The sensor's output voltage changed linearly with variation of the value of primary current in the 0 to 100 A range. When the value of primary current was 100 A, the output voltage was 69 mV per 150 turns in the coil. Although the ambient temperature around the sensor was raised at 80°C due to heat evolved by the electric resistance of the coil, there was no almost variation of the voltage. This result indicates the practical applicability as the current sensor for electrical cables.

Original languageEnglish
Title of host publicationIEEE SENSORS 2014, Proceedings
EditorsFrancisco J. Arregui
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages742-745
Number of pages4
EditionDecember
ISBN (Electronic)9781479901616
DOIs
StatePublished - 12 Dec 2014
Externally publishedYes
Event13th IEEE SENSORS Conference, SENSORS 2014 - Valencia, Spain
Duration: 2 Nov 20145 Nov 2014

Publication series

NameProceedings of IEEE Sensors
NumberDecember
Volume2014-December
ISSN (Print)1930-0395
ISSN (Electronic)2168-9229

Conference

Conference13th IEEE SENSORS Conference, SENSORS 2014
Country/TerritorySpain
CityValencia
Period2/11/145/11/14

Keywords

  • Battery-less
  • Coil
  • Current sensor
  • Film
  • Wireless sensor networks

Fingerprint

Dive into the research topics of 'Thin film based flexible current clamp sensor for green wireless sensor networks'. Together they form a unique fingerprint.

Cite this