MECHANICAL DESIGNOF A MULTIAXES MARTIAN SEISMOMETER

摘要

A new seismometer indented to future missions to Marswas developed by SODERN as the industrial partner ofIPGP and CNES.This seismometer is a Very BroadBand seismometer (VBB)to measure the Martianseismic activity.This paper describes the mechanical architecture of theseismometer and identifies the main challenges whichwere overcome.In particular,the paper points out howSODERN managed the requirements for the extremelyhigh sensitivity of the seismometer and coped with thevery low size and mass budgets and the very harshmechanical and thermal environments specific toMartian missions (especially very low temperatures andsevere shock when landing).The lessons learned from the available preliminary testsresults are also presented.