14 May 2010 Multicolor LED-based temperature and O2-pressure sensor
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Proceedings Volume 7726, Optical Sensing and Detection; 77261G (2010); doi: 10.1117/12.853690
Event: SPIE Photonics Europe, 2010, Brussels, Belgium
Abstract
First results for luminescence-based dual sensing of environmental parameters with a multicolor LED are presented. With this method, cross-sensitivities of the luminescence material between such environmental properties can be eliminated. A very compact and inexpensive sensor setup is possible by use of an LED as excitation source and another LED simultaneously as luminescence detector. The parametrization of the cross-sensitivity will be discussed and possible further simplifications of the sensor will be pointed out.
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Frederico Lima, Volker Lange, Sergey Borisov, Dietrich Kühlke, "Multicolor LED-based temperature and O2-pressure sensor", Proc. SPIE 7726, Optical Sensing and Detection, 77261G (14 May 2010); doi: 10.1117/12.853690; https://doi.org/10.1117/12.853690
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KEYWORDS
Light emitting diodes

Sensors

Luminescence

Oxygen

Absorption

Ruby

Temperature metrology

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