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

Investigation of frequency-domain lifetime PSP technique using a Fluorescence Lifetime Imaging (FLIM) camera

Munekata, Mizue and Yorita, Daisuke and Henne, Ulrich and Klein, Christian and Holst, Gerhard (2018) Investigation of frequency-domain lifetime PSP technique using a Fluorescence Lifetime Imaging (FLIM) camera. In: 18th International Symposium on Flow Visualization (ISFV18) (300m), pp. 1-9. 18th International Symposium on Flow Visualization (ISFV18), 26.-29. June 2018, Zürich, Schweiz. DOI: 10.3929/ethz-b-000279189

[img] PDF - Registered users only
1MB
[img] PDF - Registered users only
1MB

Official URL: https://doi.org/10.3929/ethz-b-000279189

Abstract

Frequency-domain fluorescence lifetime imaging (FLIM) is applied for acquiring pressure sensitive paint (PSP) images by using a pco.flim camera, which has an in-pixel dual tap control CMOS image sensor. In this FLIM technique, an excitation light is modulated sinusoidally, and modulation depth and phase angle, which depend on lifetime or pressure, are estimated from four gated images. In the calibration test, the influences of modulated excitation light, exposure time and modulation frequency are shown. The pressure sensitivity of phase angle has similar sensitivity to that in the standard lifetime method (gated intensity ratio). As the first step of application, a low speed wind tunnel test was performed. The pressure distribution caused by the vortex on a delta wing is visualized successfully by this technique.

Item URL in elib:https://elib.dlr.de/124974/
Document Type:Conference or Workshop Item (Speech)
Additional Information:Paper DOI: 10.3929/ethz-b-000279189
Title:Investigation of frequency-domain lifetime PSP technique using a Fluorescence Lifetime Imaging (FLIM) camera
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Munekata, MizueKumamoto UniversityUNSPECIFIED
Yorita, Daisukedaisuke.yorita (at) dlr.deUNSPECIFIED
Henne, Ulrichulrich.henne (at) dlr.deUNSPECIFIED
Klein, Christianchristian.klein (at) dlr.dhttps://orcid.org/0000-0001-7592-6922
Holst, GerhardPCO AGUNSPECIFIED
Date:26 June 2018
Journal or Publication Title:18th International Symposium on Flow Visualization (ISFV18)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.3929/ethz-b-000279189
Page Range:pp. 1-9
Series Name:Conference Proceedings online
Status:Published
Keywords:Pressure-Sensitive Paint, PSP, Fluorescence Lifetime Imaging
Event Title:18th International Symposium on Flow Visualization (ISFV18)
Event Location:Zürich, Schweiz
Event Type:international Conference
Event Dates:26.-29. June 2018
Institution:Deutsches Zentrum für Luft- und Raumfahrt e.V.
Department:AS-EXV
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Simulation and Validation
Location: Göttingen
Institutes and Institutions:Institute for Aerodynamics and Flow Technology > Experimental Methods, GO
Deposited By: Micknaus, Ilka
Deposited On:09 Jan 2019 12:13
Last Modified:09 Jan 2019 12:13

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.