Compact low power wireless gas sensor node with thermo compensation for ubiquitous deployment

Andrey Somov, Evgeny F. Karpov, Elena Karpova, Alexey Suchkov, Sergey Mironov, Alexey Karelin, Alexander Baranov, Denis Spirjakin

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)

Abstract

Wireless sensor networks (WSNs) have recently been applied for industrial monitoring, including combustible and flammable gases monitoring. In this work, we present a wireless gas sensor node in which a widely used Wheatstone sensing circuit based on two sensors is exchanged with a single sensor circuit, as well as the associate gas measurement procedure. The core of the measurement procedure is the four-stage heating profile, which enables low power consumption of sensing circuit and thermo compensation adjustment. A thermo compensation algorithm is capable of avoiding the effect of the environmental temperature on the measurements by keeping stable zero-offset within ±1 mV and ensuring low absolute error within 0.1% vol. The thorough design of the sensor node allows it to fit into the 5.5 cm3 packaging, which ensures its true ubiquitous deployment in outdoor and industrial environment.

Original languageEnglish
Article number7088611
Pages (from-to)1660-1670
Number of pages11
JournalIEEE Transactions on Industrial Informatics
Volume11
Issue number6
DOIs
Publication statusPublished - 1 Dec 2015
Externally publishedYes

Keywords

  • Advanced packaging
  • Gas sensing
  • Low power
  • Power management
  • Temperature compensation
  • Wireless sensor network (WSN)

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