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Conceptual design for an ultra-sensitive bioaerosol detection system

Soltau, Julian and Walter, Arne and Fellner, Lea and Kraus, Marian and Grünewald, Karin and Duschek, Frank (2022) Conceptual design for an ultra-sensitive bioaerosol detection system. In: Proceedings of SPIE - The International Society for Optical Engineering. SPIE SECURITY + DEFENCE, 2022-09-05 - 2022-09-08, Deutschland, Berlin. doi: 10.1117/12.2636223. ISBN 978-151065547-8. ISSN 0277-786X.

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Abstract

The detection of aerosols in general and bioaerosols more specific has gained an increased importance in multiple fields. While environmental scientists are increasingly interested in the impacts of aerosols onto climatic effects, researchers in the security sector are looking for ways to remotely detect dangerous substances from safe distances. Additionally, due to the Corona pandemic, the detection of bioaerosols has gained significant relevance in sectors like public health, transportation, and aviation. As a result, more accurate, i.e. sensitive and specific, measurement equipment is needed. Here we present the design concept for a new sensor system designed to measure thin bioaerosol clouds. For the detection air samples are excited with laser light to generate a signal based on laser induced fluorescence. The fluorescence is collected in an integration sphere to optimize signal. Inside the integration sphere multiple sensors are placed, each combined with a filter to exclude all signals not belonging to a certain, agent specific wavelength interval. Through the intelligent combination of spectral intervals, a specific characteristic of the studied air sample is measured. Based on the measured characteristic a classification is performed to determine the category of the sample. Development aims at testing indoor air quality in real time.

Item URL in elib:https://elib.dlr.de/193191/
Document Type:Conference or Workshop Item (Poster)
Title:Conceptual design for an ultra-sensitive bioaerosol detection system
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Soltau, JulianUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Walter, ArneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Fellner, LeaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Kraus, MarianUNSPECIFIEDhttps://orcid.org/0000-0002-5385-9420UNSPECIFIED
Grünewald, KarinUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Duschek, FrankUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Date:November 2022
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
DOI:10.1117/12.2636223
ISSN:0277-786X
ISBN:978-151065547-8
Status:Published
Keywords:Signal detection, Aerosols, Sensors, Luminescence, Laser induced fluorescence, Signal processing
Event Title:SPIE SECURITY + DEFENCE
Event Location:Deutschland, Berlin
Event Type:international Conference
Event Start Date:5 September 2022
Event End Date:8 September 2022
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:other
DLR - Research area:Raumfahrt
DLR - Program:R - no assignment
DLR - Research theme (Project):R - no assignment
Location: Lampoldshausen
Institutes and Institutions:Institute of Technical Physics > Atmospheric Propagation and Effect
Deposited By: Soltau, Julian
Deposited On:12 Jan 2023 13:53
Last Modified:24 Apr 2024 20:54

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