Heidelberg 2022 – wissenschaftliches Programm

Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe

EP: Fachverband Extraterrestrische Physik

EP 4: Planets and Small bodies

EP 4.6: Vortrag

Dienstag, 22. März 2022, 15:25–15:35, EP-H1

The In-Ice Sonar System for the TRIPLE Forefield Reconnaissance System — •Jan Audehm, Ben Burgmann, Mia Giang Do, Sharif El Mentawi, Dirk Heinen, Johanna Hermannsgabner, Andreas Nöll, Shreyans Sakhare, Christopher Wiebusch, Yuting Ye, and Simon Zierke — RWTH Aachen University - Physics Institute III B, Aachen, Germany

The icy moons Europa and Enceladus belong to the most interesting sites for the search of extra-terrestrial life in the solar system. It is assumed that in the oceans beneath their thick ice crusts preconditions for the emergence of life are fulfilled.

In the TRIPLE-project Technologies for Rapid Ice Penetration and subglacial Lake Exploration are developed to enable future exploration missions to the subsurface oceans of icy moons. These technologies will be demonstrated in a terrestrial analog scenario in Antarctica. Here, a melting probe will transport a small autonomous underwater vehicle (TRIPLE-nanoAUV) through the ice to an underlying water reservoir.

For this mission it is of great importance that the probe avoids obstacles on the path through the ice and can detect the transition between ice and water to anchor there. This task is addressed by TRIPLE-FRS being a Forefield Reconnaissance System using a hybrid system consisting of a radar, a sonar, and a permittivity sensor. Combining the complementary techniques assures a high performance of the FRS in ice as well as in water. This poster presents our concept for the sonar system and simulations of the acoustic transducer characteristics.