Status of AMS02 Crates TV Tests at NSPO

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Status of AMS-02 Crates T/V Tests at NSPO
AMS-02

• Presented by
• Jih-Run (J. R.) Tsai
• Chia-Ray (Steven) Chen
• National Space Program Office
• July 22, 2004

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Content

• Introduction
• Thermal Vacuum Test Facility
• Test Interfaces
• Test Temperature Profiles
• Pre-Test Activities
• Test Windows

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Introduction

• According to the TEM discussion at CSIST on 7/6,
  electronics crates including QM (TTPD UUPD)
  and FM / FS (JJTJPD) will be delivered to NSPO
  for T/V tests in February 2005.
• Two TV/TB tests for QM J and JJTJPD,
  respectively, had been successfully performed at
  NSPO in the last two years before the results
  were issued by a paper and presented in 34th ICES
  (International Conference on Environmental
  Systems) on July 19, 2004, at Colorado Springs,
  Co., USA.

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Thermal Vacuum Test Facility
Small Thermal Vacuum Chamber
Thermal Data handling System Heater Control
System
Electrical Test Equipment
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Test Interfaces - Electrical

• Four 55 pins of feedthroughs (95-44 CD951 B07H
  22-55PS) for electrical signals and two 24 pins
  of feedthroughs (DM5623-37-2-PP) for power were
  used during 1st QM J-crate TV test. Portplate
  with optical fiber feedthroughs was added for 2nd
  J/JT/JPD TV test.
• Need to confirm the following items
• How many feedthroughs will be used for QM U/UPD
  and T/TPD TV test(s)?
• Are there any updates for FM/FS JJTJPD TV
  tests?
• Are there any EGSE boxes installed inside the TV
  chamber during testing for each aforementioned
  test?

DM5623-37-2-PP
Optical fiber feedthroughs
95-44 CD951 B07H 22-55PS
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Test Interfaces Mechanical and Thermal

• Need to confirm mechanical interfaces
  (engineering drawings) for QM TTPD / UUPD and
  FM/FS JJTJPD TV tests.
• QM T/TPD and U/UPD may not be tested together as
  suggested in the last TEM due to the dimensional
  constraint of thermal baseplate of small TV
  chamber!
• Do FM/FS JJTJPD have the exactly same
  mechanical interfaces as QM crates?
• Need to get the detailed material list (with the
  corresponding outgassing data) for each test
  article before conducting the TV test in order to
  fulfill NSPO QA requirement.
• NSPO will prepare all the required thermal test
  materials such as MLI, heaters, thermal fillers
  (Cho-Therm), thermal isolators, etc., as usual.

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Test Temperature Profile - QM

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Test Temperature Profile FM/FS

Temperature (Acceptance Test Level)
Pump down
Return To ambient
Thermal Cycle Profile


Chamber environment Pressure ? 1x10-5 mbar

2 hrs
1 hr
Hot Non-Op. (80oC)
1 hr
1 hr
1 hr

Functional Test
Functional Test
Hot Op. (50oC)
Ambient
Cold Op. (-20oC)
1 hr
1 hr
Cold Non-Op. (40oC)
Functional Test
Functional Test

1 hr
1 hr
Operation (on)
Turn on
Non-operation (off)
Turn off
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Pre-Test Activities

• Need to get the thermal model for QM T/TPD and
  U/UPD before testing in order to verify crate
  thermal interfaces design and analysis after
  performing the thermal balance test.
• Need to prepare the thermal test procedures for
  the coming TV/TB tests. However, the electrical
  function test procedures should be provided by
  all the crates owners in order to complete the
  electrical portions of the TV test procedures.

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AMS-02 Crates Thermal Vacuum Test - Test Windows
Arrangement

• Possible test windows are temporarily allocated
  for AMS-02 crates thermal vacuum tests by using
  NSPO test facility as follows

03/15/2005
02/15/2005
05/15/2005
12/01/2004
08/01/2004
11/01/2004
ROCSAT-3 FM45 TV tests preps
ROCSAT-3 FM6 TV test preps
ROCSAT-3 FM23 TV tests preps.
Possible window (QM T/TPD U/UPD FM/FS
J/JT/JPD)
Possible window (May not be used)
05/15/2005
07/30/2005
10/01/2005
12/30/2005
ROCSAT-3 flight operation
Possible window
ROCSAT-3 launch preps.
ROCSAT-3 launch window