Presentation is loading. Please wait.

Presentation is loading. Please wait.

Double Star: Table of Contents

Published byGladys McBride Modified over 6 years ago

Similar presentations

Presentation on theme: "Double Star: Table of Contents"— Presentation transcript:

1 Double Star: Table of Contents
European Experiment Summary Mechanical Interface Experiment Accommodation Thermal Interface EMC Rationale Grounding Philosophy / Harness Status of Experiment Interface Verification Measurements (Electrical Integration) © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 1 Roland Nord

2 Double Star: Summary of European Experiments
© Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 2 Roland Nord

3 Double Star: Mechanical Interfaces
Accommodation Status on Equatorial Satellite (Feb. 2002) ASPOC (location for FoV OK, mechnical details of mounting pedestal not fully clear yet FGM-Electronics (location OK) FGM-sensors (mechanical details tbd) HIA (location for FoV OK, minimum distance to thrusters is sufficient) PEACE-DPU and H(L)EEA (location for FoV OK, minimum distance to thrusters is sufficient) STAFF-PWR, STAFF- DWP/MWF,STAFF Pre-amp, (status unknown, but depicted wrongly in latest drawing) © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 3 Roland Nord

4 Double Star: Mechanical Interfaces (Cont’d)
Interface to the Central Purge supply The interfaces on the experiments and on the spacecraft are defined, i.e. for: HIA (on equatorial ) PEACE-H(L)EEA (on equatorial / polar) NUADU (on polar) The component specification for the Cluster used hardware as well as the material property parameters were given to CSSAR Samples of hardware can be made available Implementation on the satellite is tbd © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 4 Roland Nord

5 Double Star: Accommodation (1)
© Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 5 Roland Nord

6 Double Star: Accommodation (2)
© Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 6 Roland Nord

7 Double Star: Accommodation (ASPOC)
ASPOC is proposed to be accommodated on a very stiff pedestal bolted via an integral base-plate to the main equipment platform © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 7 Roland Nord

8 Double Star: Example: Cluster Drawing Detail
© Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 8 Roland Nord

9 Double Star: Thermal Interfaces
Report on the results of the detailed thermal analysis incl mission prediction for the experiments is issued soon? The status of satellite thermal hardware baseline w.r.t. blanket foil type, MLI design, fixation method, internal grounding, heaters, thermostats, radiators: was not made known to the European experimenters Special thermal blanket interfaces to be defined soon: on ASPOC (local blanket provision and I/F to the tbd -Z side satellite blanket on lower platform, if existing) on HIA (local blanket provision and I/F to the tbd satellite payload belt blanket, if existing) PEACE-H(L)EEA (local blanket and support frame fixation to the payload belt blanket, if existing) NUADU ((local blanket provision and I/F to the tbd © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 9 Roland Nord

10 Double Star: Outside Thermal Finish
Overall Conductivity Baseline design for European instruments: Tight fit local thermal blankets with conductive outer surface to be applied to the protruding parts of the sensors and the sensors on the booms Conductive coating: In-Sn Oxide, L300 or Electrodag 501 Bonding of these blankets to the satellite structure and / or the satellite thermal blankets Information on thermal materials was provided to CSSAR (Kapton, Mylar foils thermal blanket attachment procedures etc) Status in China: Baseline concept for the conductivity of the solar generator is established No information, however, is available for the baseline concept of the overall outside thermal closure and how to achieve near 100% outer surface conductivity © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 10 Roland Nord

11 Double Star: Overall EMC Concept / Harness (1)
Baseline design rationale for the Cluster mission: Minimalisation of AC magnetic emissions Spatial separation of power, signal and pyro harnesses Power lines shall be twisted with their returns Power and signal harness shall use separate connectors. If wires of different harness types use the same connector the wires shall be separated by implementation of ground pins in between the signal and power lines respectively pyro lines. Signal lines shall be twisted with the return lead Shields not to be used as return line In connectors the pins of the active signals shall be kept as close as possible to their returns © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 11 Roland Nord

12 Double Star: Overall EMC Concept / Harness (2)
Baseline design rationale for the Cluster mission: Minimalisation of AC magnetic emissions Box internal connection of secondary power return to structure ground (in Cluster this was done at signal ground rail) Signal return currents to be routed as shortly as possible to box internal ref. ground. (Cluster: to the signal ground rail) Return of shield charge currents to ground close to the source (in Cluster to the signal ground inside unit) TSP-Shield termination only on signal source side, open connection on receiver side (avoidance of charging current return via structure; minimise structure induced noise Overall cable shield connected to the connector back shells and every 20 cm to structure ground (platform) © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 12 Roland Nord

13 Double Star: Grounding Philosophy 1
Baseline design for Cluster instruments: Grounding with ground rail as Signal Ground Reference The TSP shields must be connected on the signal source side only to keep the charging current line as short as possible © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 13 Roland Nord

14 Double Star: Grounding Philosophy 2
Grounding of Signal Ground to Box Structure: TSP Cable Shield is Grounded to Signal Ground The TSP shields are connected on the signal source side only to structure to keep the charging current line minimum For the Cluster experiments this concept would mean a minor modification in the I/F connector: a wire bridge between structure and signal ground pins © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 14 Roland Nord

15 Double Star: Grounding Philosophy 3
Internal Grounding of Signal Ground to Box Structure: TSP Cable Shields are Connected to Connector Back Shell The TSP shields must be connected on the signal source side only to keep the charging current line short and thus AC fields low For the Cluster experiments this concept would mean a box internal minor modification close to the power converter: connection of secondary power ground to structure. © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 15 Roland Nord

16 Double Star: Experiment Electrical Integration
Baseline of for I/F Measurements Interface verification Double Star PDMU (EM / FM) Versus Experiments shall be made manually (using scopes and multimeters) Use of the modified and updated Cluster II integration procedures (now available as “Word”-files) Planned measurement program. 1 Bonding Resistance Check 2 Pin Grounding Continuity Check 3 Unconnected Harness Check for dangerous voltages (all PDMS subsystems running) 4 Power Interface Check (in-rush current, current level, converter synch) 5 Signal and Command I/F-Check 6 Inter Experiment Link I/F-Check (check for dangerous voltages only) 7 Integration Status Check © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 16 Roland Nord

17 Double Star: Experiment Electr. Integration (cont’d)
Preconditions for the Integration Start Following test activities have to be performed prior to the experiment integration PDMS acceptance test incl. test protocols etc (satellite contractor) The PDMS-experiment harness and IEL continuity test incl. test protocols (satellite contractor) Intra experiment harness continuity check (experimenter) Availability of a complete and debugged set of control files for the switching of the PDMS / satellite functions the switching of the experiments which are compiled on the Central Check-out Computer © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 17 Roland Nord

18 Double Star: (Cont’d) S/C switch-on power up dedicated experiments
Comprehensive Information on: S/C Command Sequences / Control Files for S/C switch-on power up dedicated experiments Switch into Primary mode Switch into Redundant mode Cross coupling Command Spin Rate Change is needed to prepare the electrical integration procedures properly. © Astrium Double Star Mtg, CSSAR, Beijing, 20 / 25 May Page 18 Roland Nord

Download ppt "Double Star: Table of Contents"

Similar presentations

Melting Probe 2008-06-24 1IWF-EXP/ÖAW GRAZ Size: 40 x 40 x 195 mm Mass w/o electronics Calculated: 450g Measured: 350g, 3m tether Main Components Cable.

Melting Probe IWF-EXP/ÖAW GRAZ Size: 40 x 40 x 195 mm Mass w/o electronics Calculated: 450g Measured: 350g, 3m tether Main Components Cable.
Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page.

Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page.
GLAST LAT Project September 15, 2006: Pre-Shipment Review Presentation 7 of 12 EMI/EMC 1 GLAST Large Area Telescope LAT Pre-Shipment Review EMI/EMC Michael.

GLAST LAT Project September 15, 2006: Pre-Shipment Review Presentation 7 of 12 EMI/EMC 1 GLAST Large Area Telescope LAT Pre-Shipment Review EMI/EMC Michael.
AMS-02 tracker mechanics status of assembly and integration Inner tracker integration completion: - Assembly and cabling - Temperature and magnetic field.

AMS-02 tracker mechanics status of assembly and integration Inner tracker integration completion: - Assembly and cabling - Temperature and magnetic field.
The LHCb Inner Tracker LHCb: is a single-arm forward spectrometer dedicated to B-physics acceptance: 15-300(250)mrad: The Outer Tracker: covers the large.

The LHCb Inner Tracker LHCb: is a single-arm forward spectrometer dedicated to B-physics acceptance: (250)mrad: The Outer Tracker: covers the large.
TP4-ENERSOL-TD/PV double function

TP4-ENERSOL-TD/PV double function
Performance of the DZero Layer 0 Detector Marvin Johnson For the DZero Silicon Group.

Performance of the DZero Layer 0 Detector Marvin Johnson For the DZero Silicon Group.
ZQNA Electrostatic Quadrupoles for ELENA Transfer Lines 1.Conceptual design 2.Performance 3.Engineering details 4.Interfaces 5.Production planning D. Barna,

ZQNA Electrostatic Quadrupoles for ELENA Transfer Lines 1.Conceptual design 2.Performance 3.Engineering details 4.Interfaces 5.Production planning D. Barna,
Experimental Area Meeting 10.03.2004V. Bobillier1 Good connection to earth (in many points) of every metallic parts to be installed in the cavern is very.

Experimental Area Meeting V. Bobillier1 Good connection to earth (in many points) of every metallic parts to be installed in the cavern is very.
Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page.

Reproduction interdite © ALMA EUROPEAN CONSORTIUM Reproduction forbidden Design, Manufacture, Transport and Integration in Chile of ALMA Antennas Page.
Observatory - Overview July 13 & 14, 2010MMS I&T Pre-CDR Peer Review 1 Single Observatory Stowed.

Observatory - Overview July 13 & 14, 2010MMS I&T Pre-CDR Peer Review 1 Single Observatory Stowed.
A Finmeccanica Company 04/2000/1 EUSO Development Philosophy EUSO General Meeting Max Planck Institute for Physics Munich, November the 20th 2003.

A Finmeccanica Company 04/2000/1 EUSO Development Philosophy EUSO General Meeting Max Planck Institute for Physics Munich, November the 20th 2003.
PROFIBUS wiring/installation can be done with:

PROFIBUS wiring/installation can be done with:
1 Mirror subsystem: telescope structure Functions: Functions: Support mirrors subsystem to S/C Support mirrors subsystem to S/C Accommodate cryostat Accommodate.

1 Mirror subsystem: telescope structure Functions: Functions: Support mirrors subsystem to S/C Support mirrors subsystem to S/C Accommodate cryostat Accommodate.
STEREO IMPACT SEP Critical Design Review 2002-Nov-20 TvR IMPACT/SEP Thermal Design John Hawk, GSFC (301)-286-2754.

STEREO IMPACT SEP Critical Design Review 2002-Nov-20 TvR IMPACT/SEP Thermal Design John Hawk, GSFC (301)
Chiho Wang ATLAS TRT Duke University CERN, Feb. 2005 1 TRT Barrel assembly status & schedule Feb. 9, 2005.

Chiho Wang ATLAS TRT Duke University CERN, Feb TRT Barrel assembly status & schedule Feb. 9, 2005.
THEMIS-SCM THM – SCM – CDR – 08-April-2004 in Velizy

THEMIS-SCM THM – SCM – CDR – 08-April-2004 in Velizy
MP Electronics 2 1IWF-EXP/ÖAW GRAZ  Power budget  Interface electronics: ~1.5 W  Probe electronics (standby): ~1.2 W  Heater power:~70 W  Power loss.

MP Electronics 2 1IWF-EXP/ÖAW GRAZ  Power budget  Interface electronics: ~1.5 W  Probe electronics (standby): ~1.2 W  Heater power:~70 W  Power loss.
LHC ARC Commissioning report during LS1 Agenda: VRGPE documentation (former VRJGE) Active Penning modification By-Pass Valves modification LHC ARC commissioning.

LHC ARC Commissioning report during LS1 Agenda: VRGPE documentation (former VRJGE) Active Penning modification By-Pass Valves modification LHC ARC commissioning.
GLAST LAT ProjectDOE/NASA Mechanical Systems Peer Review, March 27, 2003 Document: LAT-PR-0XXXX Section 5.1 Grid Box Design 1 GLAST Large Area Telescope:

GLAST LAT ProjectDOE/NASA Mechanical Systems Peer Review, March 27, 2003 Document: LAT-PR-0XXXX Section 5.1 Grid Box Design 1 GLAST Large Area Telescope:

Similar presentations

Ads by Google