TY  - JOUR
A1  - Kowalski, Julia
A1  - Linder, Peter
A1  - Zierke, S.
A1  - Wulfen, B. van
A1  - Clemens, J.
A1  - Konstantinidis, K.
A1  - Ameres, G.
A1  - Hoffmann, R.
A1  - Mikucki, J.
A1  - Tulaczyk, S.
A1  - Funke, O.
A1  - Blandfort, D.
A1  - Espe, Clemens
A1  - Feldmann, Marco
A1  - Francke, Gero
A1  - Hiecker, S.
A1  - Plescher, Engelbert
A1  - Schöngarth, Sarah
A1  - Dachwald, Bernd
A1  - Digel, Ilya
A1  - Artmann, Gerhard
A1  - Eliseev, D.
A1  - Heinen, D.
A1  - Scholz, F.
A1  - Wiebusch, C.
A1  - Macht, S.
A1  - Bestmann, U.
A1  - Reineking, T.
A1  - Zetzsche, C.
A1  - Schill, K.
A1  - Förstner, R.
A1  - Niedermeier, H.
A1  - Szumski, A.
A1  - Eissfeller, B.
A1  - Naumann, U.
A1  - Helbing, K.
T1  - Navigation technology for exploration of glacier ice with maneuverable melting probes
JF  - Cold Regions Science and Technology
N2  - The Saturnian moon Enceladus with its extensive water bodies underneath a thick ice sheet cover is a potential candidate for extraterrestrial life. Direct exploration of such extraterrestrial aquatic ecosystems requires advanced access and sampling technologies with a high level of autonomy. A new technological approach has been developed as part of the collaborative research project Enceladus Explorer (EnEx). The concept is based upon a minimally invasive melting probe called the IceMole. The force-regulated, heater-controlled IceMole is able to travel along a curved trajectory as well as upwards. Hence, it allows maneuvers which may be necessary for obstacle avoidance or target selection. Maneuverability, however, necessitates a sophisticated on-board navigation system capable of autonomous operations. The development of such a navigational system has been the focal part of the EnEx project. The original IceMole has been further developed to include relative positioning based on in-ice attitude determination, acoustic positioning, ultrasonic obstacle and target detection integrated through a high-level sensor fusion. This paper describes the EnEx technology and discusses implications for an actual extraterrestrial mission concept.
Y1  - 2016
U6  - https://doi.org/10.1016/j.coldregions.2015.11.006
SN  - 0165-232X
IS  - 123
SP  - 53
EP  - 70
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Bruns, M.
A1  - Hoffmann, W.
A1  - Hoffmann, B. (u.a.)
T1  - Iodide ion-sensitive field-effect structures
JF  - Sensors and Actuators B. 15 (1993), H. 1-3
Y1  - 1993
SN  - 0925-4005
SP  - 192
EP  - 194
ER  - 
TY  - JOUR
A1  - Feuerriegel, Uwe
A1  - Ma, J.
A1  - Hoffmann, U.
T1  - Untersuchungen zur Rußfilterregeneration mit Hilfe von Zündhilfen. Ma, J.; Hoffmann, U.; Feuerriegel, U
JF  - Erdöl und Kohle – Erdgas, Brennstoff-Chemie. 43 (1990)
Y1  - 1990
SN  - 0014-0058
N1  - Druckausgabe in Jülich unter 63 ZS 034-1990 vorhanden
SP  - 150
EP  - 157
ER  - 
TY  - JOUR
A1  - Kotter, Michael
A1  - Hoffmann, U.
T1  - Simulation eines geregelten Rührkessels mit LABVIEW / U. Hoffmann ; M. Kotter
JF  - Virtuelle Instrumente in der Praxis : Messtechnik, Automatisierung ; Begleitband zum Kongress VIP 2002 / Rahman Jamal ... (Hrsg.). - (Praxiswissen Elektronik-Industrie : Messtechnik - Automatisierung)
Y1  - 2002
SN  - 3-7785-2873-4
N1  - VIP <2002, München>
SP  - 65
PB  - Hüthig
CY  - Heidelberg [u.a.]
ER  - 
TY  - JOUR
A1  - Schöning, Michael Josef
A1  - Hoffmann, W.
A1  - Bruns, M.
A1  - Ache, H.J. (u.a.)
T1  - Chemical microsensors and evaporated silver halide layers
JF  - Bulgarian Chemical Communications. 26 (1993), H. 3-4
Y1  - 1993
SN  - 0324-1130
SP  - 402
EP  - 410
ER  -