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The MICROLAS concept - Precise thrust generation in the μN range by laser ablation

Scharring, Stefan and Lorbeer, Raoul-Amadeus and Karg, Stephanie and Pastuschka, Lisa and Eckel, Hans-Albert and Förster, Daniel Johannes (2015) The MICROLAS concept - Precise thrust generation in the μN range by laser ablation. In: Conference-DVD. Schwarzwald Workshop. Gepulste Materialbearbeitung mit KP- und UKP-Lasern, 10.-12. Nov. 2015, Freudenstadt. (In Press)

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Experimental work and hydrodynamic simulations on the MICROLAS concept of a pulsed laser-ablative microthruster are presented. Impulse bit generation in the nNs range is affected by laser parameters like pulse duration and fluence. A wide-range parameter study for the optimum working point is carried out yielding two different operation modes with respect to laser pulse duration. Thrust in µN range is generated by repetitive laser ablation events under fixed and well-defined process parameters allowing for thrust level control by the laser pulse repetition rate through several orders of magnitude. Thrust noise, e.g., by mechanical motion for continuous propellant supply, can be minimized since laser beam can access every part of the propellant surface without any mechanical motion. Experimental studies on surface roughness for various target materials are reported

Item URL in elib:https://elib.dlr.de/99642/
Document Type:Conference or Workshop Item (Speech)
Title:The MICROLAS concept - Precise thrust generation in the μN range by laser ablation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Scharring, Stefanstefan.scharring (at) dlr.deUNSPECIFIED
Lorbeer, Raoul-Amadeusraoul.lorbeer (at) dlr.deUNSPECIFIED
Karg, Stephaniestephanie.karg (at) dlr.deUNSPECIFIED
Pastuschka, Lisalisa.pastuschka (at) dlr.deUNSPECIFIED
Eckel, Hans-AlbertHans-Albert.Eckel (at) dlr.deUNSPECIFIED
Förster, Daniel Johannesdaniel.foerster (at) ifsw.uni-stuttgart.deUNSPECIFIED
Date:November 2015
Journal or Publication Title:Conference-DVD
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Status:In Press
Keywords:Mikroantrieb, Laser Ablation, Oberflächenrauhigkeit, Schubmessung, Laserparameter, Impulskoppelkoeffizient, Spezifischer Impuls, Jeteffizienz, gepulste Antriebe, Impulsbit
Event Title:Schwarzwald Workshop. Gepulste Materialbearbeitung mit KP- und UKP-Lasern
Event Location:Freudenstadt
Event Type:national Conference
Event Dates:10.-12. Nov. 2015
Organizer:IFSW Universität Stuttgart
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 - Laser Research and Technology (old)
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics > Studies and Concepts
Deposited By: Scharring, Stefan
Deposited On:23 Nov 2015 16:00
Last Modified:13 Jan 2016 15:33

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