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Read-Out of Multiple Optical Chemical Sensors by Means of Digital Color Cameras

Stich, Matthias I. J. and Borisov, Sergey M. and Henne, Ulrich and Schäferling, Michael (2009) Read-Out of Multiple Optical Chemical Sensors by Means of Digital Color Cameras. Sensors and Actuators B-Chemical, Vol. 139 (1), pp. 204-207. ELSEVIER. DOI: 10.1016/j.snb.2008.12.036. ISSN 0925-4005.

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Official URL: http://www.elsevier.com/locate/snb


Cooled black-and-white CCD-cameras are well-established devices to monitor the signal response of probes and sensors in imaging applications. When two (or even three) analytes are considered, the signals of interest have to be separated from each other. Generally, this is accomplished by using filter wheels or, in case of fluorescence lifetime imaging, by evaluating the different luminescent decay times of the indicators. Here we present a novel approach for signal separation of multiple sensors. It utilizes the basic setup of color CCD and CMOS cameras. The principle of color cameras is based on the application of three different types of pixels or layers, each of them sensitive towards different wavelength ranges. These detectors can be used to record and separate multiple sensor signals. With this new approach the sensor response of dual or even triple sensors can be monitored in a very straightforward manner. The only precondition is that the applied indicators emit at separable wavelengths. The applicability is demonstrated by means of a dual sensor based on luminescent probes for carbon dioxide and temperature incorporated in different polymer matrices.

Document Type:Article
Title:Read-Out of Multiple Optical Chemical Sensors by Means of Digital Color Cameras
AuthorsInstitution or Email of Authors
Stich, Matthias I. J.UNSPECIFIED
Borisov, Sergey M.UNSPECIFIED
Schäferling, MichaelUNSPECIFIED
Journal or Publication Title:Sensors and Actuators B-Chemical
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:Vol. 139
Page Range:pp. 204-207
Keywords:RGB, CO2, TSP, PSP, chemical sensor, dual sensor
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Flight Physics
Location: Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology > Experimental Methods
Deposited By: Ilka Micknaus
Deposited On:27 Jul 2009 10:16
Last Modified:26 Feb 2013 15:06

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