Analyzed FFmatrix TN: 20110825_010801 (modal x10)

Found large residuals on DSP235 and DSP291 (all aaround 280DSP)

Test removing 235DSP and acquiring a new FF matrix for checking residuals.

Analyzed FF Matrix TN: 20110825_111939. (modal x10)

High residue again around 280DSP.

New FF matrix: TN 20110825_125502 (modal x10)

This time the residual is ok. Proceeding with a modal^2 acquisition. Stopped.

Proceeded with original set of actuators in order to well identify the actuators that has to be removed.

TN 20110825_150547: modal, no problems with fitting.

TN 20110825_162254: modal, no problems with fitting.

System stopped for edge cleaning and mini-skirt install.

Mini skirt mounted and beams removed.

Found TMP full ----> 2GB is not enough.

Started test:

Shell correctly set @ 20:34. MAX force -0.18 for flat.

Start Slew test 20:34.: 0.28 Peak force 20:37 back to zenith. no particular behavior found.

Start continuing slewing @20:38.

To be removed from ICC: 315 o 316, 409, 338,,265, 299, 571, 512

Slow slew test end @ 20.47.29 Aug 25.

Start fast slew test: from 20.47.29 to 20:58.00 ALL ok

Stop every 10 degs: started @ 20:59:00 after a couple of steps found a jump which after few seconds disappeared (between 20:59 and 21:08)

Act 568 caused shell RIP -> removed from ICC

act 239 DSP found jumping.(300 nm) (see figure =300nm). Removed.

-- MarcoXompero - 25 Aug 2011
  • 20110825_010801 FF residuals:
    residue_20110825_010801_.png

  • 20110825_111939 FF residue:
    residue3.png

  • Feed forward acquisition: 20110825_125502:
    residue4.png

  • 20110825_150547: ff residue:
    residue5.png

  • 20110825_162254: no problems on fitting FF data:
    residue6.png
I Attachment Action Size Date Who Comment
residue3.pngpng residue3.png manage 29 K 25 Aug 2011 - 18:22 MarcoXompero 20110825_111939 FF residue
residue4.pngpng residue4.png manage 23 K 25 Aug 2011 - 19:23 MarcoXompero Feed forward acquisition: 20110825_125502
residue5.pngpng residue5.png manage 22 K 25 Aug 2011 - 21:28 MarcoXompero 20110825_150547: ff residue
residue6.pngpng residue6.png manage 24 K 25 Aug 2011 - 23:09 MarcoXompero 20110825_162254: no problems on fitting FF data
residue_20110825_010801_.pngpng residue_20110825_010801_.png manage 20 K 25 Aug 2011 - 16:46 MarcoXompero 20110825_010801 FF residuals
Topic revision: r4 - 26 Aug 2011, MarcoXompero
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