09 EMI

Information about 09 EMI

Published on November 5, 2007

Author: Irvette

Source: authorstream.com

Content

Slide1:  GLAST Large Area Telescope LAT Pre-Shipment Review EMI/EMC Neil Johnson NRL Michael Lovellette NRL Stanford Linear Accelerator Center Slide2:  Purpose / Contents Demonstrate readiness to proceed with EMI/EMC testing of the integrated flight instrument, i.e. the LAT: Test requirements are complete LAT has been appropriately tested at lower levels of assembly Passes comprehensive systems test EMI/EMC test plans and procedures complete Facilities readiness and certification verified STE and MGSE complete, fabricated, and ready for use Manpower is sufficient to cover all planned for activities Slide3:  Requirements complete All flight system design analyses and unit testing have been successfully completed Mission System Spec  433-SPEC-0005 EMI Environments LAT Environmental Requirements Spec  LAT-SS-00778 EMI Environments LAT Performance Verification Plan  LAT-MD-00408-04c Verification test definition EMI Test Plan  LAT-MD-0027261-01 LAT EMI-specific operating modes have been defined LICOS scripts and supporting displays are in development Subsystem EMI/EMC Test Summary:  Subsystem EMI/EMC Test Summary Radiator Subsystem EMI/EMC Issue:  Radiator Subsystem EMI/EMC Issue VCHP heater Radiated Emissions testing S/C power source for LAT VCHP heaters is an unfiltered DC-DC converter. Concern is the conducted noise for this power source will become radiated emission issue for LAT system test. This issue shall be resolved by special subsystem (Radiator) test – RE102 – using simulated S/C power source. The test will be performed just prior to LAT system EMI/EMC test. Preliminary testing of this at SLAC gives reasonable confidence that there is no significant issue here. LAT EMI Test:  LAT EMI Test LAT test levels derived from LAT-SS-0778 Test Suite: CE102 Conducted Emissions, Power Leads, 10 kHz to 10 MHz, MIL-STD-462, CE03 CECM Conducted Emissions, Time Domain, 150 MHz Bandwidth CS102 Conducted Susceptibility, Power Leads, 10 kHz to 10 MHz, MIL-STD-462, CS02 CSCM Conducted Susceptibility, Common Mode, 30 Hz to 150 MHz, MIL-STD-462, CS02 CS06 Conducted Susceptibility, Spike, Power Leads, MIL-STD-462 RE101 Radiated Emissions, Magnetic Field, 20 Hz to 50 kHz RE102 Radiated Emissions, Electric Field, 10 kHz to 18 GHz, MIL-STD-461E RS101 Radiated Susceptibility, Magnetic Field, 20 Hz to 50 kHz RS103 Radiated Susceptibility, Electric Field, 30 MHz to 18 GHz Verify by Analysis: RS103 Radiated Susceptibility, Electric Field, 18 GHz to 40 GHz Static Magnetic Field LAT Power Interfaces:  LAT Power Interfaces SC-LAT Power Interfaces SC PRU (P) - LAT PDU SC PRU (R) - LAT PDU SC PRU (P) - LAT SIU (P) SC PRU (R) - LAT SIU (R) SC PRU (P) - LAT VCHP +Y Heaters SC PRU (P) - LAT VCHP –Y Heaters SC PRU (R) - LAT VCHP +Y Heaters SC PRU (R) - LAT VCHP –Y Heaters SC PRU (P) - LAT Makeup Heaters (Survival) SC PRU (R) - LAT Makeup Heaters (Survival) Heater circuit power interfaces are not tested. Test Limitations:  Test Limitations RS103 upper limit of 18GHz (40GHz) 18 – 40 GHz addressed by analysis. Limited area of RS101 test Requires scanning each 10cm x 10cm area, ~16min/scan ~1450 scans for the LAT, another ~1200 for the radiators (~29 days) Scan selected locations around connectors, PMTs, BEA Limited R (redundant) side conducted testing Emissions tests and susceptibility only where noted on Primary side EMI Test Configuration:  EMI Test Configuration Performed in NRL anechoic chamber ESD bags will be removed during active testing. Bags in place for transport and inactive periods. GN2 purge to control humidity Active cooling w/ LAT chiller system Path finder of LAT instrument on the test stand in NRL’s anechoic chamber Test Layout:  Test Layout LAT Chiller Connection Conducted Test Considerations:  Conducted Test Considerations Fully test Primary: SC PRU (P) - LAT PDU (P) SC PRU (P) - LAT SIU (P) Limited test of Redundant: (as a result of Primary findings) SC PRU (R) - LAT PDU (R) SC PRU (R) - LAT SIU (R) No plan to test PRU - LAT Survival Heaters Thermostatic control, open circuit at LAT operating temp Not active with LAT operating in Mission No plan to test PRU - VCHP Heaters Test Harnesses:  Test Harnesses Radiated testing will used nominal EGSE cables Harness is fully shielded Includes all connector savers Any test ports are closed out or have shielded harnesses Test harnesses are shielded Accelerometers TCs & thermistors Breakout cables required for conducted emissions testing LAT-DS-06531 LSC to RF shield, SIU power LAT-DS-06530 BPU PNL to LSC, SIU power LAT-DS-06528 BPU PNL to LSC, LSC to DAQ, DAQ power Test Software:  Test Software Emissions Testing – Script # LAT-171 LAT configured to collect muons with additional periodic trigger to appropriately populate the T&DF data flow and science data stream to the VSC. Susceptibility Testing – Script # LAT-181: LAT configured to collect muons with CAL triggers (flight level) and ACD vetos enabled. Susceptibility monitoring TKR event occupancy CAL pedestal widths (noise) and trigger rates ACD pedestal widths (noise) and veto rates T&DF commanding and data flow errors Real time monitoring Strip chart of most susceptible TKR tower/tray occupancies Strip chart of CAL / ACD trigger rates Strip chart of LAT trigger rate and deadtime Diagnostic error messages Post processing Global TKR occupancy vs time Global CAL, ACD pedestal widths vs time Personnel:  Personnel EMI/EMC Test Director - Michael Lovellette EMI/EMC Facility Operations Mike Obara - Test Conductor Tony Grey - Test Conductor LAT Instrument Operations Brian Grist – Operations Lead Standard LAT I&T Operators and Online analysis support EMI/EMC Test Summary:  EMI/EMC Test Summary Ready to test Facility ready to support test No outstanding issues with subsystem testing except completion of radiator VCHP heater CS / RE verification Supporting analyses for static magnetic field have been accepted by Blanchette for GLAST project Supporting analysis for RS103 18 – 40 GHz performance is in progress. Need closure of ACD contribution to the analysis with Blanchette. RE102 - Integrated LAT:  RE102 - Integrated LAT RE101 – All LAT Equipment:  RE101 – All LAT Equipment CE102 Spacecraft PRU – LAT DAQ:  CE102 Spacecraft PRU – LAT DAQ CE102 Spacecraft PRU – LAT SIU, VCHP Htrs:  CE102 Spacecraft PRU – LAT SIU, VCHP Htrs Conducted Emissions Common Mode:  Conducted Emissions Common Mode RS103 Perform – LAT:  RS103 Perform – LAT RS101 Perform – LAT:  RS101 Perform – LAT CS102 Spacecraft PRU – LAT DAQ:  CS102 Spacecraft PRU – LAT DAQ CS102 Spacecraft PRU – LAT SIU, VCHP Htrs:  CS102 Spacecraft PRU – LAT SIU, VCHP Htrs Conducted Susceptibility Common Mode :  Conducted Susceptibility Common Mode CS06 Operate – All LAT Equipment:  CS06 Operate – All LAT Equipment CS06 Perform – All LAT Equipment:  CS06 Perform – All LAT Equipment

Related presentations


Other presentations created by Irvette

Propaganda
29. 12. 2007
0 views

Propaganda

lecture3 yeast
16. 10. 2007
0 views

lecture3 yeast

Giving Bad News
28. 09. 2007
0 views

Giving Bad News

Nutrient Mobility 26
04. 10. 2007
0 views

Nutrient Mobility 26

bad honnef
05. 10. 2007
0 views

bad honnef

olsug 0402 10Hannay Nature
08. 10. 2007
0 views

olsug 0402 10Hannay Nature

Presentation Japan
09. 10. 2007
0 views

Presentation Japan

IRAN and RUSSIA Oil Gas Policies
11. 10. 2007
0 views

IRAN and RUSSIA Oil Gas Policies

present
12. 10. 2007
0 views

present

Presentation Russia
12. 10. 2007
0 views

Presentation Russia

Aula 6
15. 10. 2007
0 views

Aula 6

13 Equine Sciences
19. 10. 2007
0 views

13 Equine Sciences

Panama Canal powerpoint
22. 10. 2007
0 views

Panama Canal powerpoint

Cathia Palmer MI BANCO
22. 10. 2007
0 views

Cathia Palmer MI BANCO

MOROCCO Time Line Power Point
23. 10. 2007
0 views

MOROCCO Time Line Power Point

clim forecast
02. 10. 2007
0 views

clim forecast

5004
10. 12. 2007
0 views

5004

Quake06 template v3
29. 10. 2007
0 views

Quake06 template v3

Hendra
31. 10. 2007
0 views

Hendra

Veschetti PL
01. 11. 2007
0 views

Veschetti PL

imo bw dip con highlights
06. 11. 2007
0 views

imo bw dip con highlights

itt recruitment challenges wales
06. 11. 2007
0 views

itt recruitment challenges wales

showcase
17. 10. 2007
0 views

showcase

fuel tank safety
07. 11. 2007
0 views

fuel tank safety

CClub2 11 08 05 Part 2
19. 11. 2007
0 views

CClub2 11 08 05 Part 2

2006StatsRRTC 3 4
29. 11. 2007
0 views

2006StatsRRTC 3 4

Hospitality Industry Workforce
14. 12. 2007
0 views

Hospitality Industry Workforce

Goff
06. 12. 2007
0 views

Goff

florence1
31. 10. 2007
0 views

florence1

cindy zheng update
17. 10. 2007
0 views

cindy zheng update

Town Hall PowerPoint 6 14 04
18. 10. 2007
0 views

Town Hall PowerPoint 6 14 04

abc5fm
09. 10. 2007
0 views

abc5fm

D Baker RadBelt
30. 10. 2007
0 views

D Baker RadBelt

Thursday
19. 10. 2007
0 views

Thursday

humn presentation
17. 10. 2007
0 views

humn presentation

berkeley04r
28. 11. 2007
0 views

berkeley04r

Hybridmedia in Japan 2005 small
09. 10. 2007
0 views

Hybridmedia in Japan 2005 small

osipenko
15. 10. 2007
0 views

osipenko

Henry VIIIs Problems
05. 10. 2007
0 views

Henry VIIIs Problems

NWAV 2007
31. 10. 2007
0 views

NWAV 2007

Rhetoric AmerDream ppt
19. 02. 2008
0 views

Rhetoric AmerDream ppt

AW12
29. 10. 2007
0 views

AW12

Small Arms Marking Overview
26. 02. 2008
0 views

Small Arms Marking Overview

HazeConsult 032207
05. 10. 2007
0 views

HazeConsult 032207

class10 22
28. 02. 2008
0 views

class10 22

L17 PT2 Splicing1
15. 10. 2007
0 views

L17 PT2 Splicing1

ES110 Hazardous Waste
10. 03. 2008
0 views

ES110 Hazardous Waste

003 Glenn Jerome
16. 03. 2008
0 views

003 Glenn Jerome

explorer
25. 03. 2008
0 views

explorer

Lect 10A Tides
03. 04. 2008
0 views

Lect 10A Tides

chap19
08. 04. 2008
0 views

chap19

leb shaw
13. 04. 2008
0 views

leb shaw

gelisim 1
16. 10. 2007
0 views

gelisim 1

rm2 lautanala
19. 10. 2007
0 views

rm2 lautanala

Kickoff Poster Italy 1
31. 10. 2007
0 views

Kickoff Poster Italy 1

Collateral Damage 9 27 06
22. 04. 2008
0 views

Collateral Damage 9 27 06

Food show Big
05. 01. 2008
0 views

Food show Big

B1 U10 A
06. 05. 2008
0 views

B1 U10 A

EC2004 ch10
07. 05. 2008
0 views

EC2004 ch10

Home Hemo dialysis Presentation
07. 05. 2008
0 views

Home Hemo dialysis Presentation

CBMB discrimination
08. 05. 2008
0 views

CBMB discrimination

Youth Program Presentation
08. 05. 2008
0 views

Youth Program Presentation

5 Hall evidence based medicine
08. 05. 2008
0 views

5 Hall evidence based medicine

Remote Learning VATAT
02. 05. 2008
0 views

Remote Learning VATAT

Heart Reports
02. 05. 2008
0 views

Heart Reports

CDC033 Presentation
02. 05. 2008
0 views

CDC033 Presentation

ProviderFraudTrainin gPartII
02. 05. 2008
0 views

ProviderFraudTrainin gPartII

TEXPEC ACP program
02. 05. 2008
0 views

TEXPEC ACP program

Presentation30
11. 10. 2007
0 views

Presentation30

raceway Jarnigan
12. 10. 2007
0 views

raceway Jarnigan

Presentation MAROC 10 2006
24. 10. 2007
0 views

Presentation MAROC 10 2006

MoscowPres2fin GK 220207
26. 10. 2007
0 views

MoscowPres2fin GK 220207

131
18. 04. 2008
0 views

131

Boeing2003
24. 10. 2007
0 views

Boeing2003

morocco1105
24. 10. 2007
0 views

morocco1105

Linux101
02. 11. 2007
0 views

Linux101

Airspace needs
09. 10. 2007
0 views

Airspace needs

JackieWilliamson Sabah
13. 03. 2008
0 views

JackieWilliamson Sabah

WVEB NCSM
08. 10. 2008
0 views

WVEB NCSM

Presentacion AIDS Helder Mario
28. 12. 2007
0 views

Presentacion AIDS Helder Mario

PURI SCAG Presentation 111601 1
10. 04. 2008
0 views

PURI SCAG Presentation 111601 1

EQ OEM Presentation Nov04
02. 05. 2008
0 views

EQ OEM Presentation Nov04

Mr Anup Banerji ppt to CII
11. 12. 2007
0 views

Mr Anup Banerji ppt to CII

AdrianaMaria2
24. 10. 2007
0 views

AdrianaMaria2

El mundo del espectaculo2
02. 11. 2007
0 views

El mundo del espectaculo2

ECS2006PresentationGB
15. 10. 2007
0 views

ECS2006PresentationGB

SURF X4L
12. 10. 2007
0 views

SURF X4L

Schulte
06. 03. 2008
0 views

Schulte

Valtio luennot
20. 11. 2007
0 views

Valtio luennot

trw vortrag 18 03 04
16. 11. 2007
0 views

trw vortrag 18 03 04

GA GTIPGTEJones2
03. 10. 2007
0 views

GA GTIPGTEJones2

interim03
10. 10. 2007
0 views

interim03

haulintr
27. 02. 2008
0 views

haulintr

pandrangi
29. 09. 2007
0 views

pandrangi

Disz
01. 05. 2008
0 views

Disz

ETW2005SeminarVIII
23. 10. 2007
0 views

ETW2005SeminarVIII

Galkin prospecting
30. 10. 2007
0 views

Galkin prospecting

edpre040505
07. 10. 2007
0 views

edpre040505

sensor mama
03. 10. 2007
0 views

sensor mama

2nd European GIC
07. 01. 2008
0 views

2nd European GIC