elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Contact | Deutsch
Fontsize: [-] Text [+]

A Dual Luminescent Sensor Material for Simultaneous Imaging of Pressure and Temperature on Surfaces

Stich, Matthias I. J and Nagl, Stefan and Wolfbeis, Otto S. and Henne, Ulrich and Schäferling, Michael (2007) A Dual Luminescent Sensor Material for Simultaneous Imaging of Pressure and Temperature on Surfaces. Advanced Functional Materials, Vol. 18 (9), pp. 1399-1406. WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. DOI: 10.1002/adfm.200701199. ISSN 1616-301X.

Full text not available from this repository.

Official URL: http://www.afm-journal.de

Abstract

A novel kind of composite material for simultaneous luminescent determination of air pressure and temperature is presented. The dual sensor consists of a fluorinated platinum porphyrin complex (PtTFPP) as an oxygen-sensitive probe, and of the highly temperature-sensitive europium complex Eu(tta)3(dpbt) as temperature probe. Both are incorporated into different polymer microparticles to control response characteristics and to avoid interferences. Encapsulation of PtTFPP in poly(styrene-co-acrylonitrile) (PSAN) results in a broad dynamic range from 0.05 to 2.00 bar for pressure measurements. The europium complex was incorporated into poly(vinyl chloride) to reduce the cross sensitivity towards oxygen. This system represents a new class of luminescent sensor system, where the signals are separated via the different luminescence lifetimes of the indicators. It is possible to monitor the emission of the temperature-sensitive probe by means of time-resolved fluorescence imaging without interferences, because the luminescence lifetime of the temperature indicator is tenfold longer than that of the oxygen indicator. The temperature image can then be used to compensate cross sensitivity of the pressure indicator towards temperature. In combination with an appropriate time-resolved measurement technique, this material enables simultaneous imaging of pressure (or oxygen partial pressure) and temperature distributions on surfaces. It is distinguished from other approaches of dual pressure and temperature sensitive paints because it avoids the need of signal separation by application of different cameras or by use of different optical filters or light sources.

Document Type:Article
Additional Information:Published Online: 29 Apr 2008
Title:A Dual Luminescent Sensor Material for Simultaneous Imaging of Pressure and Temperature on Surfaces
Authors:
AuthorsInstitution or Email of Authors
Stich, Matthias I. JUniversity of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)
Nagl, StefanUniversity of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)
Wolfbeis, Otto S.University of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)
Henne, UlrichUNSPECIFIED
Schäferling, MichaelUniversity of Regensburg, Institute of Analytical Chemistry, Chemo- and Biosensors, 93040 Regensburg (Germany)
Date:2007
Journal or Publication Title:Advanced Functional Materials
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:Vol. 18
DOI:10.1002/adfm.200701199
Page Range:pp. 1399-1406
Publisher:WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Series Name:AFMDC6
ISSN:1616-301X
Status:Published
Keywords:europium • imaging • luminescence • porphyrin • platinum • rare-earth complexes • sensors
HGF - Research field:Aeronautics, Space and Transport (old)
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:05 Jun 2008
Last Modified:15 Jan 2010 01:52

Repository Staff Only: item control page

Browse
Search
Help & Contact
Informationen
electronic library is running on EPrints 3.3.12
Copyright © 2008-2012 German Aerospace Center (DLR). All rights reserved.