1. THEMIS Instrument FM2/FM3 PERFGM 1 Teleconference 8/30/2005 THEMIS Instrument FM2/3 Pre-Environmental Review Fluxgate Magnetometer (FGM) Dr Ellen Taylor University of California - Berkeley

2. THEMIS Instrument FM2/FM3 PERFGM 2 Teleconference 8/30/2005  Design Verification  Design parameters same as FM1  FGE/FGS Calibration before delivery to UCB  8 test/calibration steps performed in Berlin, Braunschweig, Jeserigerhütten and Graz  FGS Sensor Environmental Qualification FM2/FM3 (SN01/SN02)  Vibration and TV test levels  Parameters checked before and after tests  FGE Electronics Environmental Qualification FM2/FM3 (SN01/SN02)  Vibration and TV testing with IDPU  Suite CPT done before and after tests  No PFRs or modifications since FM1 PER FGM FM2/FM3 Overview

3. THEMIS Instrument FM2/FM3 PERFGM 3 Teleconference 8/30/2005  Design Verification  All requirements in MRD verified  Calibration Tests  Digital functional test - check of board population, FPGA and current sources  Analogue Adjustment of FGS and FGE - Test of excitation,input filter, phase adjustment, sensitivity and noise  Parameters vs. Electronics Temperature - Test of offset, sensitivity, inrush current, phase in dependency on e-temp.  Parameters vs. Sensor Temperature - Test of offset, sensitivity and noise in dependency on sensor temperature  Test of non-linearity - Test of DAC non linearity and filter characteristics  Earth field registration - Test of resolution and stability by comparison of F4 and F6 measuring Earth field variations  Determination of sensor axis direction - Direction of magnetic axis determined with respect to mechanical ref. Frame  Determination of scale value and orthogonality - Scale values and orthogonality check vs. sensor temp. in coil system FM2/FM3 Performance

4. THEMIS Instrument FM2/FM3 PERFGM 4 Teleconference 8/30/2005  Vibration Specs same as FM1  FM2/FM3 Vibration Test in Berlin: 6/28/05 to 7/2/04  Sine wave: up to 6.4g @ 50Hz  Random noise: 11.7g RMS  TV-cycle same as FM1  FM2/FM3 TV Test Performed in Graz: 7/01/04 to 7/03/04  Two cycles between -120°C and 90°C  Parameter check (before, between and after tests) same as FM1  Resistance of all coils / Sensor output signals  Coil constants and mechanical alignment of feedback coil system FM2/FM3 FGS Envir.