Differences between revisions 4 and 22 (spanning 18 versions)
⇤ ← Revision 4 as of 2018-10-02 23:31:50 →
Size: 3034
Editor: TomotadaAkutsu
Comment:
← Revision 22 as of 2018-10-04 00:07:08 → ⇥
Size: 2442
Editor: TomotadaAkutsu
Comment:
Deletions are marked like this. Additions are marked like this.
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 *  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=6394]]
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 * Delivered an oplev pylon.
 * Delivered a K400 flange (VN7877 by Mirapro), which had been washed at Mirapro.
 * Checked the polarity of LVDTs and actuator coils, and compared with the one measured in Mitaka shown [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/subgroup/AOS/TMS-VIS0|here]].
  * When we took up the side of the table where LVDT-V1 was installed, the raw LVDT-V1 signal (VIS-TMSX_LVDTINF_**_INMON) showed '''negative''' signal; in the same manner, V2-> positive, V3-> '''negative''', and all the horizontal signals (H1,H2,H3) were positive; they were consistent with those of in Mitaka.
  * When we input plus (about +3000 counts) signal to actuator coil H1, the raw LVDT H1, H2, and H3 (VIS-TMSX_LVDTINF_**_INMON) showed all positive; in the same manner, ActCoil H2 positive -> all LVDT-H''x'' positive, ActCoil H3 positive -> all LVDT-H''x'' positive, ActCoil V1 positive (+5000 counts) -> LVDT-V1 '''negative''', ActCoil V2 positive -> LVDT-V2 positive, ActCoil V3 positive -> LVDT-V3 '''negative'''.
  * To translate the results of the actuator coils, considering the polarity of the raw LVDT signals, all the actuator coils were set to actuate the table to the '''''positive directions''''' when we input positive counts to them; the '''''positive directions'''' here followed the difinitions in [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/subgroup/AOS/TMS-VIS0|here]]; positive yaw is counter clock wise from the top view, and upward is positive vertical.		  * Akutsu cleaned each side of the optical parts to be installed into the chamber (on the BRT) just using ethanol only. So I omitted acetone and First Contact... Anyway, they are
  * CVI's HM-2037-45
  * Thorlabs's HBSY21
  * Opto Sigma's special one: TFMQSP-50.8C10-20-532/1064-0/26D
  * Opto Sigma's SLB-50.8-200NM
  * Need to make a summary page similar to [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/subgroup/AOS/TMSY1/TMSY1GreenOpticsMemo|here]].
 * Started the alignment of the BRT using the green transmitted beam. It is still on the way.
  * A reference is [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/subgroup/AOS/TMSY1/2018-03-27|here]]
  * Firstly we put two diaphrams; let's call them '''''iris-1''''' and '''''iris-2'''''. The '''''iris-1''''' is at the back of the BRT2 lens, while the '''''iris-2''''' is in front of the BRT2 lens.


 {{../Brt20181003.png}}
  * BBBB
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 * Connect the cables to flanges.  * Wash an ''imo''-screw for connecting the lens holder and the lower pile.
 * Align and balance the BRT and the TMS-VIS.
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  * Engage the logical channels and the assigned physical channels.
 * Install BRT on TMS-VIS.
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 * Make clean the cabling... ask to VIS??

20181003

Today's activities

Workers: Akutsu, K. Nagano, Aritomi K. Tanaka, Kita

  • Akutsu cleaned each side of the optical parts to be installed into the chamber (on the BRT) just using ethanol only. So I omitted acetone and First Contact... Anyway, they are
    • CVI's HM-2037-45
    • Thorlabs's HBSY21
    • Opto Sigma's special one: TFMQSP-50.8C10-20-532/1064-0/26D
    • Opto Sigma's SLB-50.8-200NM

    • Need to make a summary page similar to here.

  • Started the alignment of the BRT using the green transmitted beam. It is still on the way.

    • A reference is here

    • Firstly we put two diaphrams; let's call them iris-1 and iris-2. The iris-1 is at the back of the BRT2 lens, while the iris-2 is in front of the BRT2 lens.

    ../Brt20181003.png

    • BBBB

Next plan

  • Wash an imo-screw for connecting the lens holder and the lower pile.

  • Align and balance the BRT and the TMS-VIS.
  • Configure the digital models properly.

  • Clean the sides of the optics to be installed into the vacuum chamber. (Ethanol+Acetone wiping with vectra alpha, then First Contact.) See here.

  • Detach the remaining white tapes just before closing the chamber; be noted that there are white tapes on the PEEK connectors at the inside of the flanges.
  • Torque completely the bolts which are fixing the upper and the lower base plates.
  • Insert metal gaskets before torquing the ICF203 flanges with Dsub connectors.
  • Check horizontal actuation
  • Calibrate LVDT again
  • Put calibration factor of Geophones
  • Install Tome-Kanagu for Dsub in DAC0 port #4
  • Put tags to cables
  • Align BRT
  • Start to install GPT part
  • Damping of TMS-VIS

Wanted!

  • Tester!! lend from DGS or PEM??
  • M8 eyebolts for managing the dummy weight plates...
  • First contact to clean the side diameter of the optics.
  • Need a signal generator for LVDTs
  • A document for learning how to release or fix the suspended tables (by Uraguchi?).
  • Cable tags
  • IR mirrors (4 PYD-20, 3 PYD-10)
  • Tome-Kanagu for Dsub
  • Power taps
  • ONE DAC PORT!!!!

KAGRA/Subgroups/AOS/TMSX_O3/2018-10-03 (last edited 2018-10-04 12:24:02 by KojiNagano)