A Miniaturized Particulate Matter Sensing Platform Based on CMOS Imager and Real-Time Image Processing

Zijian Du, Francis Tsow, Di Wang, Nongjian Tao

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A miniaturized particulate matter (PM) sensing platform was developed. The platform uses a CMOS imager as sensor, electrostatic particle collector to collect ambient PM on an imaging substrate, and a laser diode as light source to scatter light from the particles. Image processing-based PM sensing algorithm was developed to obtain particle number, size, and size distribution in real time. The system is compact, power efficient, and low cost. The PM sensing platform is suitable for personal PM exposure monitoring with applications in environmental health, occupational, and epidemiological studies.

Original languageEnglish (US)
Article number8423622
Pages (from-to)7421-7428
Number of pages8
JournalIEEE Sensors Journal
Volume18
Issue number18
DOIs
StatePublished - Sep 15 2018

Keywords

  • CMOS imager
  • Particulate matter sensing
  • electrostatic particle collector
  • environmental sensors
  • image processing algorithm

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering

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