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System design and laboratory tests of an autonomous seismic station for space applications

Heffels, Alexandra and Lange, Caroline and Toth, Norbert and Jahnke, Stephan Siegfried and Jaspers, Patrick (2022) System design and laboratory tests of an autonomous seismic station for space applications. Planetary and Space Science, 217, p. 105489. Elsevier. doi: 10.1016/j.pss.2022.105489. ISSN 0032-0633.

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Official URL: https://www.sciencedirect.com/science/article/abs/pii/S0032063322000757

Abstract

We introduce a reference concept for a small and lightweight instrument carrier system for operation in isolated areas on Earth (or even on other celestial bodies) that autonomously records data after deployment at a site remote from the main station, thus called Remote Unit (RU). In particular, we present here concepts for realizing an autonomously operating seismometer, including support functions provided by encapsulating the actual instrument into the RU carrier. The conceptualization of the RU is based on the design of MASCOT, and intended for evolving into an instrument carrier for lunar exploration. Still in this paper we focus on the functionality needed for realizing the remote and autonomous aspects of the concept. Evolutionary steps needed for the system design to survive on a planetary body are briefly discussed, but not intensively covered in this paper, but elsewhere. We developed two prototypes of this RU including three seismic sensors each, either fixed, the other one with a built-in self-leveling mechanism. We used standard seismic sensors, which were integrated into a lightweight instrument carrier equipped with all required support structures for remote terrestrial operation, including power, thermal control, and data acquisition (total mass of prototypes not exceeding 3 ​kg and 10 ​kg, respectively). We have carried out laboratory tests and evaluated seismic data from these two types of RU to evaluate noise levels, spectral response, and overall performance of the systems. We demonstrate that the systems provide reproducible data at high signal levels, which warrant comfortable scientific interpretation of seismic data from active and passive experiments. Noise level and detected spectral anomalies (due to mechanical structure and associated Eigenfrequencies) are well within expectations.

Item URL in elib:https://elib.dlr.de/190945/
Document Type:Article
Title:System design and laboratory tests of an autonomous seismic station for space applications
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Heffels, AlexandraUNSPECIFIEDhttps://orcid.org/0000-0002-9266-8061UNSPECIFIED
Lange, CarolineUNSPECIFIEDhttps://orcid.org/0000-0002-1709-3667UNSPECIFIED
Toth, NorbertUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jahnke, Stephan SiegfriedUNSPECIFIEDhttps://orcid.org/0000-0003-1678-4332UNSPECIFIED
Jaspers, PatrickGerman Aerospace Center – Institute of Space Systems (now at SILVER ATENA Electronic Systems Engineering GmbH), GermanyUNSPECIFIEDUNSPECIFIED
Date:May 2022
Journal or Publication Title:Planetary and Space Science
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:217
DOI:10.1016/j.pss.2022.105489
Page Range:p. 105489
Publisher:Elsevier
ISSN:0032-0633
Status:Published
Keywords:lightweight instrument carrier system, seismic station
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Exploration of the Solar System, R - Planetary Evolution and Life
Location: Berlin-Adlershof , Bremen
Institutes and Institutions:Institute of Planetary Research > Planetary Physics
Institute of Space Systems
Institute of Space Systems > Systems Engineering and Project Office
Institute of Space Systems > Avionics Systems
Deposited By: Breuer, Dr. Doris
Deposited On:06 Dec 2022 07:47
Last Modified:06 Dec 2022 07:47

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