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Tests performed during the heavy maintenance. Tests performed during the heavy maintenance (2007.06.20)

[[TableOfContents]]

=== Goals ===

Identify the origin(s) of the "acceleration" problem in MAMBO2

=== People ===
Line 4: Line 12:
Goals: Identify the origin(s) of the "acceleration" problem in MAMBO2 [[BR]]
People: DJ, SL, SN, JP
Pico Veleta: DJ, SL, SN, JP
Line 9: Line 16:
Methods === Methods ===

Inclinometer installed on the Mambo2 platform

attachment:inclinometerPhoto.jpg



=== Results ===

   * Inclinometer measurements for two on-off measurements with the Cascade and the Basic controller.

[[BR]]
attachment:inclinometerBolo.jpg


   * On-off measurements with the offsets in elevation: 360" (scan 47, Cascade) and 440" (scan 50, Basic)

[[BR]]
'''Cascade controller'''
attachment:scan47-elev-cascade.jpg
---------
'''Basic controller'''
attachment:scan50-elev-basic.jpg
---------

   * An extra weight was put on the bolometer platform (scan 51)
attachment:scan51.jpg
---------

   * Measurements of electrical peak with the oscilloscope during an on-off measurements with the offsets in elevation (scan 53).
No correlation was found between the beginning of the scans where the extra noise peaks appeared and the electric activity. A peak frequency of 5 sec
was observed but which may be related to the air conditioned system.
 
=== Conclusions ===

Tests performed during the heavy maintenance (2007.06.20)

TableOfContents

Goals

Identify the origin(s) of the "acceleration" problem in MAMBO2

People

Pico Veleta: DJ, SL, SN, JP

Methods

Inclinometer installed on the Mambo2 platform

attachment:inclinometerPhoto.jpg

Results

  • Inclinometer measurements for two on-off measurements with the Cascade and the Basic controller.

BR attachment:inclinometerBolo.jpg

  • On-off measurements with the offsets in elevation: 360" (scan 47, Cascade) and 440" (scan 50, Basic)

BR Cascade controller attachment:scan47-elev-cascade.jpg


Basic controller attachment:scan50-elev-basic.jpg


  • An extra weight was put on the bolometer platform (scan 51)

attachment:scan51.jpg


  • Measurements of electrical peak with the oscilloscope during an on-off measurements with the offsets in elevation (scan 53).

No correlation was found between the beginning of the scans where the extra noise peaks appeared and the electric activity. A peak frequency of 5 sec was observed but which may be related to the air conditioned system.

Conclusions

testMambo-20070620 (last edited 2009-04-16 08:26:28 by localhost)