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Development of a Micro-Thruster Test Facility which fulfils the LISA requirements

Hey, Franz Georg and Keller, Andreas and Johann, Ulrich and Braxmaier, Claus and Tajmar, Martin and Fitzsimons, Ewan and Weise, Dennis (2015) Development of a Micro-Thruster Test Facility which fulfils the LISA requirements. In: Journal of Physics: Conference Series 610 (2015) 012010. 10th International LISA Symposium (LISAX), 18.-23.05.2014, Gainesville, Florida USA. DOI: 10.1088/1742-6596/610/1/012037

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Abstract

In the context of investigations for a su�cient attitude control thruster for LISA, we have developed a thruster test facility which consists of a highly precise thrust balance coupled with plasma diagnostics. In parallel to the test facility development, investigations to downscale a High E�ciency Multistage Plasma Thruster (HEMP-T) are also being carried out. The thruster has been used to demonstrate the measurement capabilities of the facility. The setup allows a parallel operation of all instruments and can also be used for other types of μN propulsion systems including cold gas thrusters. The thrust balance consists of two pendulums. As read out a heterodyne laser interferometer is used. Di�erential wave front sensing (DWS) enables the measurement of the pendulum tilt which, via suitable calibration using an electrostatic comb, can be converted to a thrust. The whole setup is a symmetric con�guration enabling a common-mode rejection of the dominant noise sources (e.g. seismic noise etc.). The thrust balance has a demonstrated precision of 0:1 μN. Based on our unique design, this precision can be attained down to 10

Item URL in elib:https://elib.dlr.de/103495/
Document Type:Conference or Workshop Item (Speech)
Title:Development of a Micro-Thruster Test Facility which fulfils the LISA requirements
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Hey, Franz GeorgAirbus Defense and Space, Immenstadt, GermanyUNSPECIFIED
Keller, AndreasAstrium GmbH, Claude-Dornierstra�e 1, 88090 Immenstaad, GermanyUNSPECIFIED
Johann, UlrichAstrium FriedrichshafenUNSPECIFIED
Braxmaier, Clausclaus.braxmaier (at) dlr.deUNSPECIFIED
Tajmar, MartinTU DresdenUNSPECIFIED
Fitzsimons, EwanAirbus Defence & Space, FriedrichshafenUNSPECIFIED
Weise, DennisAstrium GmbH–Satellites, 88039 Friedrichshafen, GermanyUNSPECIFIED
Date:2015
Journal or Publication Title:Journal of Physics: Conference Series 610 (2015) 012010
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
DOI :10.1088/1742-6596/610/1/012037
Status:Published
Keywords:HEMPT, electric propulsion, micro-Newton thruster, thrust balance, heterodyne interferometer
Event Title:10th International LISA Symposium (LISAX)
Event Location:Gainesville, Florida USA
Event Type:international Conference
Event Dates:18.-23.05.2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben GRACE Follow-On
Location: Bremen
Institutes and Institutions:Institute of Space Systems > Systems Enabling Technologies
Deposited By: Hüls, Simone
Deposited On:17 Mar 2016 10:28
Last Modified:21 Sep 2017 09:44

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