On-board monitoring of vehicle exhaust emissions using an ultraviolet optical fibre based sensor

Research output: Contribution to journalArticlepeer-review

Abstract

A fibre-optic sensor for the monitoring of hazardous vehicle exhaust emissions of the order of parts per million (PPM) is described and tested. The sensor based on absorption in the ultraviolet region is used to simultaneously measure the concentrations of three of the major exhaust emission gases and output them to the vehicle's on-board computer. Experimental results describing the operation of this sensor with nitrogen dioxide (NO2), sulfur dioxide (SO2) and nitric oxide (NO) are shown. The sensor was found to have a lower threshold of detection for NO2 of 2ppm, SO 2 of 2ppm and NO of 20ppm. The sensor showed response times of less than four seconds and demonstrated minimal susceptibility to cross interferences of the gases.

Original languageEnglish
Article numberS05
Pages (from-to)S24-S31
JournalJournal of Optics A: Pure and Applied Optics
Volume9
Issue number6
DOIs
Publication statusPublished - 1 Jun 2007

Keywords

  • Emission regulations
  • Gas sensor
  • Pollution monitoring
  • Spectroscopy

Fingerprint

Dive into the research topics of 'On-board monitoring of vehicle exhaust emissions using an ultraviolet optical fibre based sensor'. Together they form a unique fingerprint.

Cite this