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2019/2/15 13:30 - 		 2019/2/15 13:30 -
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Site work schedule: [[|XLSX]] Site work schedule: [[https://www.dropbox.com/s/f3lj5uzari3s258/Weekly%20schedule%20190219-VIS.xlsx?dl=0|XLSX]]
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Type-C: ([[ https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9013|XLSX]]) Type-C: ([[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=9013|XLSX]])
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[Y-end]
  * Checked the height of filters by the release sensor. The filters were not touching the sensors.
  * The F3 keystone was touching the stopper. Adjusted the weight on the BF.
  * The motion of BF keystone was very damped. Adjusted the position of secondary coil.
  * Adjusted the gain for F0 LVDT in the driver. Calibrated the F0 LVDT.
  * Adjusted the phase/gain for IP LVDT in the driver. Calibrated the IP LVDTs.
  * Set the height of F0 keystone to -9mm so that the height of BF can be at the nominal posision.
  * Released the IP. Each (H1, H2, H3) transfer function and spectrum looked natural.
  * Diagonalized transfer functions and spectra showed that the mode L and T are not degenerated (0.07Hz and 0.13Hz).
  * Checked inside of the corrugate tube by the long fiber scope. Any problems were not found.
Line 22: Line 32:
  * Adjustment of the TF, the BF damper, and the IP in X-end (Feb 26-28).
Line 24: Line 35:
==== Past week report ==== ==== Report for week of 2/12 (February 12th) ====
 * On Saturday we moved the vertical IM OSEMs in order to compensate for a large pitch in the IM introduced when the IR laser as aligned.
  * I took transfer functions over the weekend and the system looks healthy.
  * Although moving the OSEMs was done successfully, I accidentally pulled the cables and moved the flying saucer cable clamp set. I rotated it back judging the position by visual inspection, but an IM yaw drift appeared since then. It's moving with a speed of 0.2 urad/min.
  * On Tuesday we moved the Im back to zero but the drift continued. At the time of writing these lines it is at -833 urad, with H2 and H3 at 93 um and 47 um and still drifting.
 * On Saturday we connected the SRM geophones in-air cables and confirmed we had a signal.
  * However, on Wednesday morning the geophones are not giving any signal. We cheked the master model channel and realized the problem was not the slave model. We suspect a hardware fault.
  * I checked the in-air cables were connected.
 * We released the SRM optical bench and wiped the places where sticky tape was used to fix support blocks.
 * We wiped the SR2 optical bench and security structure. SR3 and SRM had been wiped by Hirose-san, Hirata-san and Fujii-kun.
 * Terrence started the previously prepared new model tower models for SRM and BS with the new ALIGN filters which is a copy of the TEST filter. The WD threshold for LVDTs and geophones are now separated.
 * Terrence worked on splitting the real-time models for the SR2 and SR3. The models worked with the new features now, with DAQ reset in some cases and with help of Miyakawa-san for configuring some DGS related documents (rtcsystab, master, safe.snap, etc).
 * Before starting the new models for SR2, Terrence completely shut off SR2 and swapped the power spool with the power strip that was previously prepared.
 * Terrence edited the DGS OVERALL screen to show the new SR2 and SR3 models. The TYPE B OVERALL MEDM screen was also modified so taking separate snapshots for the ALIGN and OPTIC ALIGN blocks is available. The corresponding burt request files were also created.
 * The corresponding Marco files were also updated to account for the model split and the new DCUIDs. Some mistakes in the Marco files were fixed.
 * The Guardian systems for all TYPE B suspensions were all shut off and the suspensions were put in the safe mode manually.
 * All Type B Guardian modules are pointing to the generic type B Guardian model (TYPEB.py). It was partially modified for the commissioning next week and Terrence will keep working on it in the afternoon.
 * Today the pumping down of the central area will begin around noon. We will monitor the four inverted pendulums
Line 26: Line 56:
Line 30: Line 59:
Line 34: Line 62:
Line 38: Line 65:
Line 40: Line 66:
 * Crane inspection: Feb 22nd 11:30 - 12:30
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  * Type-A:    * Type-A:
Line 49: Line 75:
Line 52: Line 77:
  * Takahashi: 
  * Okutomi:
  * Sato: 
  * Lucia: 
  * Fabian: 
  * Mark:
  * Hirata: 
  * Enzo:		   * Takahashi:
  * Okutomi: 18-22
  * Sato:
  * Lucia:
  * Fabian:
  * Mark: 19-22
  * Hirata:
  * Enzo: 19-22
Line 62: Line 87:
  * Fujii:   * Fujii: 19-22
Line 64: Line 89:
  * Tanaka:
  * Terrence		   * Tanaka: 
  * Terrence:18-22
Line 68: Line 93:
  * Takahashi:   * Takahashi: 26-28
Line 70: Line 95:
  * Sato: 
  * Lucia: 
  * Fabian: 
  * Mark:
  * Hirata: 
  * Enzo:		   * Sato:
  * Lucia:
  * Fabian:
  * Mark: 25-1
  * Hirata:
  * Enzo: 25-1
Line 78: Line 103:
  * Fujii:   * Fujii: 25-1
Line 80: Line 105:
  * Terrence   * Terrence: 25-1

Agenda/Minutes of the VIS Meeting on 2019/2/15

2019/2/15 13:30 -

Zoom Meeting

Participants:

Progress report

Schedule Chart

Site work schedule: XLSX

Type-A : (PDF/MPP)

Type-B: (PDF/MPP)

Type-C: (XLSX)

Type-A (Takahashi)

Past week report

[Y-end]

  • Checked the height of filters by the release sensor. The filters were not touching the sensors.
  • The F3 keystone was touching the stopper. Adjusted the weight on the BF.
  • The motion of BF keystone was very damped. Adjusted the position of secondary coil.
  • Adjusted the gain for F0 LVDT in the driver. Calibrated the F0 LVDT.
  • Adjusted the phase/gain for IP LVDT in the driver. Calibrated the IP LVDTs.
  • Set the height of F0 keystone to -9mm so that the height of BF can be at the nominal posision.
  • Released the IP. Each (H1, H2, H3) transfer function and spectrum looked natural.
  • Diagonalized transfer functions and spectra showed that the mode L and T are not degenerated (0.07Hz and 0.13Hz).
  • Checked inside of the corrugate tube by the long fiber scope. Any problems were not found.

Plan for coming weeks

  • Adjustment of the TF, the BF damper, and the IP in X-end (Feb 26-28).

Type B (Mark)

Report for week of 2/12 (February 12th)

  • On Saturday we moved the vertical IM OSEMs in order to compensate for a large pitch in the IM introduced when the IR laser as aligned.
    • I took transfer functions over the weekend and the system looks healthy.
    • Although moving the OSEMs was done successfully, I accidentally pulled the cables and moved the flying saucer cable clamp set. I rotated it back judging the position by visual inspection, but an IM yaw drift appeared since then. It's moving with a speed of 0.2 urad/min.
    • On Tuesday we moved the Im back to zero but the drift continued. At the time of writing these lines it is at -833 urad, with H2 and H3 at 93 um and 47 um and still drifting.
  • On Saturday we connected the SRM geophones in-air cables and confirmed we had a signal.
    • However, on Wednesday morning the geophones are not giving any signal. We cheked the master model channel and realized the problem was not the slave model. We suspect a hardware fault.
    • I checked the in-air cables were connected.
  • We released the SRM optical bench and wiped the places where sticky tape was used to fix support blocks.
  • We wiped the SR2 optical bench and security structure. SR3 and SRM had been wiped by Hirose-san, Hirata-san and Fujii-kun.
  • Terrence started the previously prepared new model tower models for SRM and BS with the new ALIGN filters which is a copy of the TEST filter. The WD threshold for LVDTs and geophones are now separated.
  • Terrence worked on splitting the real-time models for the SR2 and SR3. The models worked with the new features now, with DAQ reset in some cases and with help of Miyakawa-san for configuring some DGS related documents (rtcsystab, master, safe.snap, etc).
  • Before starting the new models for SR2, Terrence completely shut off SR2 and swapped the power spool with the power strip that was previously prepared.
  • Terrence edited the DGS OVERALL screen to show the new SR2 and SR3 models. The TYPE B OVERALL MEDM screen was also modified so taking separate snapshots for the ALIGN and OPTIC ALIGN blocks is available. The corresponding burt request files were also created.
  • The corresponding Marco files were also updated to account for the model split and the new DCUIDs. Some mistakes in the Marco files were fixed.
  • The Guardian systems for all TYPE B suspensions were all shut off and the suspensions were put in the safe mode manually.
  • All Type B Guardian modules are pointing to the generic type B Guardian model (TYPEB.py). It was partially modified for the commissioning next week and Terrence will keep working on it in the afternoon.
  • Today the pumping down of the central area will begin around noon. We will monitor the four inverted pendulums

Plan for coming weeks

Type-Bp (Shoda)

Past week report

Plan for coming weeks

OMMT & OSTM (Ohishi)

Past week report

Plan for coming weeks

VIS electronics (Tanaka)

Past week report

Plan for coming weeks

Other site works

  • Crane inspection: Feb 22nd 11:30 - 12:30

Safety

  • Incidents:
  • Foreseen risks
    • Type-A:
    • Type-B:

Discussion

Travel Plans

  • Travel (Week of 2/18):
    • Takahashi:
    • Okutomi: 18-22
    • Sato:
    • Lucia:
    • Fabian:
    • Mark: 19-22
    • Hirata:
    • Enzo: 19-22
    • Shoda:
    • Ohishi:
    • Fujii: 19-22
    • Tanioka:
    • Tanaka:

    • Terrence:18-22

  • Travel (Week of 2/25):
    • Takahashi: 26-28
    • Okutomi:
    • Sato:
    • Lucia:
    • Fabian:
    • Mark: 25-1
    • Hirata:
    • Enzo: 25-1
    • Shoda:
    • Ohishi:
    • Fujii: 25-1
    • Tanioka:
    • Terrence: 25-1

Next meeting

On 2019/2/22(Fri)

KAGRA/Subgroups/VIS/VISMinutes201902015 (last edited 2019-02-15 15:53:47 by YoichiAso)