Modelling the reponse features of optical sensors for oxygen: an overview

A. Mills

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The response features of optical oxygen sensors based on luminescence quenching are complex and typically include downward curving Stern-Volmer plots and multi-exponential luminescence decays in the absence and presence of oxygen. The principle features and failings of some of the established models used to describe these response features are considered. A new model is introduced: 'a log-Gaussian distribution in (tau) 0 and kq,i ' model, or 'log- Gaussian' model for short. The key basic equations of this model are given and appear able to simulate the diverse response characteristics of many optical oxygen sensor. The model is used to fit the observed Stern Volmer plots and luminescence decays for two real sensors. The model appears to provide a reasonable physical basis for the very diverse response characteristics observed for optical oxygen sensors.
Original languageEnglish
Pages (from-to)232-242
Number of pages10
JournalProceedings of SPIE the International Society for Optical Engineering
Volume3856
DOIs
Publication statusPublished - 4 Jun 2003

Fingerprint

Optical Sensor
Optical sensors
optical measuring instruments
Oxygen
Luminescence
Oxygen sensors
oxygen
Modeling
Sensor
sensors
luminescence
Model
Decay
plots
Gaussian Model
Quenching
Gaussian distribution
decay
normal density functions
quenching

Keywords

  • optical sensors
  • oxygen

Cite this

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abstract = "The response features of optical oxygen sensors based on luminescence quenching are complex and typically include downward curving Stern-Volmer plots and multi-exponential luminescence decays in the absence and presence of oxygen. The principle features and failings of some of the established models used to describe these response features are considered. A new model is introduced: 'a log-Gaussian distribution in (tau) 0 and kq,i ' model, or 'log- Gaussian' model for short. The key basic equations of this model are given and appear able to simulate the diverse response characteristics of many optical oxygen sensor. The model is used to fit the observed Stern Volmer plots and luminescence decays for two real sensors. The model appears to provide a reasonable physical basis for the very diverse response characteristics observed for optical oxygen sensors.",
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Modelling the reponse features of optical sensors for oxygen: an overview. / Mills, A.

In: Proceedings of SPIE the International Society for Optical Engineering, Vol. 3856, 04.06.2003, p. 232-242.

Research output: Contribution to journalArticle

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