Pavel Travnicek, Petr Hellinger,Stepan Stverak, David HerčíkZdenek Kozacek, Jan Brinek
Astronomical Institute, ASCR,Institute of Atmospherics physics, ASCRCzech Space Research Centre and SPRINX systems
● team heritage
● collaboration on SCM preamplifier for balloon flight with UCB
● I/V converters for DEMETER Langmuir probe (ISL)
● prototype of a search coil magnetometer
● Dual Segmented Langmuir Probe experiment onboard PROBA2 satellite
● long heritage in numerical simulations
● solar wind interaction (Mercury, Moon, Enceldus, ...)
● basic plasma physics (instabilities, waves)
Introduction
Uppsala RPWI meeting 26-27.11.2009
Dual Segented Langmuir Probe (DSLP)
Uppsala RPWI meeting 26-27.11.2009Uppsala RPWI meeting 26-27.11.2009
● DSLP consists of two identical sensors mounted on a solar panel with DPU inside the S/C
● the sensors are spheres 4cm in diameter with seven independent disk shaped segments
● three basic modes● bias sweep● potential measurement● E-field measurement
● DSLP accommodated onboard PROBA2
● PROBA2 successfully launched on 2.
November 2009
● currently in commissioning phase
● operational phase starting in February
● DSLP already switched on during
commissioning
● performing as expected
● data already available
Dual Segented Langmuir Probe (DSLP)
Uppsala RPWI meeting 26-27.11.2009
3
Search coil magnetometer development
● preamplifier and one axis sensor coil with a ferrite core
● two different types of preamplifier tested
● FET
● bipolar
● various coils wound
SCM design
Uppsala RPWI meeting 26-27.11.2009
Search coil magnetometer development
Preamplifier
● first design developed in
collaboration with UCB for balloon
flights
● further various modifications tested
● final version with current amplifier
configuration
Uppsala RPWI meeting 26-27.11.2009