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= Activities in this week =
'''VIS/EY'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15950|15950]] Setup of F2 , __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15959|15959]] Connection between F3 and F2 , __naohisa.satou__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15972|15972]] Cabling between F3 and F2 , __naohisa.satou__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15982|15982]] Setup of F2 , __ryutaro.takahashi__
 * (!) Thursday [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15993|15993]] Setup of F2 , __ryutaro.takahashi__
'''VIS/General'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15737|15737]] We investigated the network connection. , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15956|15956]] Comment, __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15958|15958]] About Picomotor's 24-hour operation , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15965|15965]] Integration of Cryo Payload Phytron motor driver into MEDM , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15983|15983]] I posted this by mistake. , __satoru.ikeda__
'''VIS/IX'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15968|15968]] Connection to cryo-payload , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15974|15974]] Comment, __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15968|15968]] Connection to cryo-payload , __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15981|15981]] Setup of pre-isolator , __ryutaro.takahashi__
'''VIS/MCE'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15987|15987]] MCe oplev , __tomotada.akutsu__
'''VIS/PR3'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15976|15976]] Picomotor of PR3_BF_T(Motor2) got stuck , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15979|15979]] Comment, __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15976|15976]] Picomotor of PR3_BF_T(Motor2) got stuck , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15977|15977]] PR3 IM PITCH, ROLL, YAW's Picomotor is operated to measure the travel and drive range , __satoru.ikeda__
'''VIS/PRM'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=9449|9449]] PRM glitch investigation: , __koki.okutomi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15960|15960]] Comment, __kouseki.miyo__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15988|15988]] Comment , __kouseki.miyo__
  * (!) Thursday [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15994|15994]] Comment , __kouseki.miyo__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15957|15957]] Checking the operation of PRM's Picomotor PRM_BF and PRM_IM , __satoru.ikeda__
'''VIS/SR3'''
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15928|15928]] Oplev installation and alignment recovery. , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15953|15953]] Comment, __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15963|15963]] IM ballast mass adjustment , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15975|15975]] Comment, __fabian.arellano__
 * (!) Thursday [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15990|15990]] Comment , __fabian.arellano__
 * (!) Thursday [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15991|15991]] Comment , __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15963|15963]] IM ballast mass adjustment , __fabian.arellano__
Line 49: Line 9:
Participants:  Participants:
Line 66: Line 26:
Participants: Participants:

== Activities in this week ==
=== VIS/General ===
'''Summary''': Ikeda-san worked on following items;

(1) He measured the length of the network cable (15956), and now is preparing to order all cables we need with DGS group.

(2) He got message from manufacturer that it is difficult to operate the picomotor for long time more 24 hours. (15958). So he is now considering to request AEL group to make the circuit box that turns power on and off with BIO signal like the stepper motor circuit.

(3) He made the new MEDM screen for stepper motor on MN stage which is developed by Nishimoto-kun. We can open the screen from [sitemap]/[STEPPING MOTOR]/[CRY_OVERVIEW] (15965).

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15737|15737]] We investigated the network connection. , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15956|15956]] Comment, __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15958|15958]] About Picomotor's 24-hour operation , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15965|15965]] Integration of Cryo Payload Phytron motor driver into MEDM , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15983|15983]] I posted this by mistake. , __satoru.ikeda__

=== VIS/EY ===
'''Summary''': Setup of the F2 stage in EY: installation of suspension wire, cabling, calibration of LVDT, check of FR range, tuning

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15950|15950]] Setup of F2 , __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15982|15982]] Setup of F2 , __ryutaro.takahashi__
 * (!) Thursday [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15993|15993]] Setup of F2 , __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15959|15959]] Connection between F3 and F2 , __naohisa.satou__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15972|15972]] Cabling between F3 and F2 , __naohisa.satou__

=== VIS/IX ===
'''Summary''': Connection of the cryo-payload in IX, mounted the geophones onto the IP in IX, and compressed the F0 blades in IX.

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15968|15968]] Connection to cryo-payload , __ryutaro.takahashi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15974|15974]] Comment, __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15968|15968]] Connection to cryo-payload , __ryutaro.takahashi__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15981|15981]] Setup of pre-isolator , __ryutaro.takahashi__

=== VIS/MCE ===
'''Summary''': Akutsu-san found the optical lever light hits on the edge of the MCE mirror during his investigation about IMC ghost beams. We need to re-schedule to work on IMC suspension for this problem and also other issues reported in [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15916|15916]]. Please discuss it later.

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15987|15987]] MCe oplev , __tomotada.akutsu__

=== VIS/PRM ===
'''Summary''':

(1) Miyo fixed the swapped cabling on the BF-damper for PRM with Nakagaki-san, and after that, the noise coupling of the transfer function at higher frequency is decreased to the same behavior of other PR suspensions (15994). By the way, the same noise coupling was reported in Type-A suspension [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=12678|12678]]. Is it caused by the same error?

(2) Ikeda-san touched the picomotor of PRM for his first operation (15957) before measure the calibration factor between picomotor and OSEM.

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=9449|9449]] PRM glitch investigation: , __koki.okutomi__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15960|15960]] Comment, __kouseki.miyo__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15988|15988]] Comment , __kouseki.miyo__
  * (!) Thursday [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15994|15994]] Comment , __kouseki.miyo__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15957|15957]] Checking the operation of PRM's Picomotor PRM_BF and PRM_IM , __satoru.ikeda__

=== VIS/PR3 ===
'''Summary''': Ikeda-san tested the picomotor operation and measured rough calibration value for PR3-IM picomotor (15977). During the test for BF picomotor, it was stucked (15976). So we need open the top chamber to fix that.

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15977|15977]] PR3 IM PITCH, ROLL, YAW's Picomotor is operated to measure the travel and drive range , __satoru.ikeda__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15976|15976]] Picomotor of PR3_BF_T(Motor2) got stuck , __satoru.ikeda__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15979|15979]] Comment, __satoru.ikeda__

=== VIS/SR3 ===
Albums

 * [[https://photos.app.goo.gl/YiRfy6a9uDf4rvcKA|BS remedying work after O3]]
 * [[https://photos.app.goo.gl/4cvWnXCdCsf9WiYf7|SR2 remedying work after O3]]
 * [[https://photos.app.goo.gl/X2eaBxsZGaRHYAQK6|SR3 remedying work after O3]]
 * [[https://photos.app.goo.gl/6C5tGpn7CLgGUG9y6|SRM remedying work after O3]]

SR3 ballast mass adjustment highlights

On top of Intermediate Mass

 * We recovered the oplev in order to use is as a reference for pitch.
 * '''Aim for the BF LVDT: 311 um per buoyancy correction'''.
 * After locking the IRM we checked the IM was free to move.
 * After we locked the payload and BF to the security structure, we removed the H1 OSEM flag and then the front and back panels of the IRM.
 * In two steps we removed a total of 100 grams from the IM and '''got the BF LVDT to 308 um at the temperature of the moment'''.
 * Once we finished the adjustment we assembled the IRM and put the OSEM flag back with magnet with the correct polarity.
 * '''Despite we used the oplev as a reference, apparently we disturbed the pitch by 496 urad approximately.''' This is should be within picomotor range. '''Yet to be adjusted.'''
 * '''We measured five IM transfer functions and the system looks very healthy.''' We didn't measure IM-V because the top filter is locked.

On top of Bottom Filter (klog yet to be written)

 * '''F1 LVDT aim 416 um per buoyancy effect'''.
 * From IM ballast mass adjustment we calculated how much mass we require for the BF: 2 * 45 grams.
 * '''We quickly tested the calculation this morning with temporary ballast masses and got it to 412 um'''.
 * On Monday we will put the masses properly and fix them.

==== Klog entries ====

 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15928|15928]] Oplev installation and alignment recovery. , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15953|15953]] Comment, __fabian.arellano__
 * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15963|15963]] IM ballast mass adjustment , __fabian.arellano__
  * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15975|15975]] Comment, __fabian.arellano__
  * (!) Thursday [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15990|15990]] Comment , __fabian.arellano__
  * (!) Thursday [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15991|15991]] Comment , __fabian.arellano__
Line 70: Line 125:
 * [Miyo] See [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210212#VIS.2BAC8-General|Activities/General]]
Line 71: Line 128:
 * Setup of the F2 stage in EY: installation of suspension wire, cabling, calibration of LVDT, check of FR range, tuning
 * Connection of the cryo-payload in IX.
 * Mounted the geophones onto the IP in IX.
 * Compressed the F0 blades in IX.
 * [Takahashi] See [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210212#VIS.2BAC8-EY|EY]]
 * [Takahashi] See [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210212#VIS.2BAC8-IX|IX]]
Line 77: Line 132:
 * [Fabian?] See [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210212#VIS.2BAC8-SR3|SR3]]
Line 78: Line 135:
 * [Miyo] See [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210212#VIS.2BAC8-PR3|PR3]]
 * [Miyo] See [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210212#VIS.2BAC8-PRM|PRM]]
Line 79: Line 139:
 * [Miyo] See [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/VISMinutes20210212#VIS.2BAC8-MCE|MCE]]
Line 80: Line 142:
No update.
Line 81: Line 145:
????
Line 99: Line 164:
 * [Ikeda] How to rescue the stucked picomotor named BF-T for PR3. [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15976|klog#15976]]
 * [Miyo] When and who work on the IMC repairing? This work is not included in the [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=11475|VIS schedule]].
  * Making of extension cables with the connector.
  * Fixing of stray wires on the pillar.
  * Fixing of the 22-pin Burndy cable to the connector.
 * [Miyo] Please write klog entry as a comment if it is related work to other entry as Fabian did on [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=15963|klog#15963]]. If you do so, it is very helpful for future workers to find whether the work is done or not.
Line 109: Line 181:
 * Takahashi: 2/23-26
 * Sato: 2/22-26
 * Takahashi: 2/23-2/28
 * Sato: 2/23-26
Line 112: Line 184:
 * Yano: 2/22-26  * Yano: 2/23-26

Agenda/Minutes on 2021/2/12

Zoom Meeting

CRY+VIS Interface Meeting

13:30-

Participants:

Post O3 Upgrade portal

  • Schedule for IX: Release is scheduled on 2/18.
  • Schedule for IY: Disconnection is scheduled on 3/11.
  • Schedule for EX: Connection is scheduled in the week of 3/15.
  • Corrugate tube fixing jig: Re-measurement is planed in 2/26-3/1 at IYV.
  • Commissioning in air:
  • Commissioning in vacuum:
  • Acceptance check: Cryo-payload in IX and Type-A tower in EY are on going.
  • PF actuator: Dead line depends on the schedule of commissioning.
  • Jig for FC painting: Delivered.

VIS Meeting

14:00-

Participants:

Activities in this week

VIS/General

Summary: Ikeda-san worked on following items;

(1) He measured the length of the network cable (15956), and now is preparing to order all cables we need with DGS group.

(2) He got message from manufacturer that it is difficult to operate the picomotor for long time more 24 hours. (15958). So he is now considering to request AEL group to make the circuit box that turns power on and off with BIO signal like the stepper motor circuit.

(3) He made the new MEDM screen for stepper motor on MN stage which is developed by Nishimoto-kun. We can open the screen from [sitemap]/[STEPPING MOTOR]/[CRY_OVERVIEW] (15965).

  • 15737 We investigated the network connection. , satoru.ikeda

    • 15956 Comment, satoru.ikeda

  • 15958 About Picomotor's 24-hour operation , satoru.ikeda

  • 15965 Integration of Cryo Payload Phytron motor driver into MEDM , satoru.ikeda

  • 15983 I posted this by mistake. , satoru.ikeda

VIS/EY

Summary: Setup of the F2 stage in EY: installation of suspension wire, cabling, calibration of LVDT, check of FR range, tuning

  • 15950 Setup of F2 , ryutaro.takahashi

  • 15982 Setup of F2 , ryutaro.takahashi

  • (!) Thursday 15993 Setup of F2 , ryutaro.takahashi

  • 15959 Connection between F3 and F2 , naohisa.satou

  • 15972 Cabling between F3 and F2 , naohisa.satou

VIS/IX

Summary: Connection of the cryo-payload in IX, mounted the geophones onto the IP in IX, and compressed the F0 blades in IX.

  • 15968 Connection to cryo-payload , ryutaro.takahashi

    • 15974 Comment, ryutaro.takahashi

  • 15968 Connection to cryo-payload , ryutaro.takahashi

  • 15981 Setup of pre-isolator , ryutaro.takahashi

VIS/MCE

Summary: Akutsu-san found the optical lever light hits on the edge of the MCE mirror during his investigation about IMC ghost beams. We need to re-schedule to work on IMC suspension for this problem and also other issues reported in 15916. Please discuss it later.

  • 15987 MCe oplev , tomotada.akutsu

VIS/PRM

Summary:

(1) Miyo fixed the swapped cabling on the BF-damper for PRM with Nakagaki-san, and after that, the noise coupling of the transfer function at higher frequency is decreased to the same behavior of other PR suspensions (15994). By the way, the same noise coupling was reported in Type-A suspension 12678. Is it caused by the same error?

(2) Ikeda-san touched the picomotor of PRM for his first operation (15957) before measure the calibration factor between picomotor and OSEM.

  • 9449 PRM glitch investigation: , koki.okutomi

    • 15960 Comment, kouseki.miyo

    • 15988 Comment , kouseki.miyo

    • (!) Thursday 15994 Comment , kouseki.miyo

  • 15957 Checking the operation of PRM's Picomotor PRM_BF and PRM_IM , satoru.ikeda

VIS/PR3

Summary: Ikeda-san tested the picomotor operation and measured rough calibration value for PR3-IM picomotor (15977). During the test for BF picomotor, it was stucked (15976). So we need open the top chamber to fix that.

  • 15977 PR3 IM PITCH, ROLL, YAW's Picomotor is operated to measure the travel and drive range , satoru.ikeda

  • 15976 Picomotor of PR3_BF_T(Motor2) got stuck , satoru.ikeda

    • 15979 Comment, satoru.ikeda

VIS/SR3

Albums

SR3 ballast mass adjustment highlights

On top of Intermediate Mass

  • We recovered the oplev in order to use is as a reference for pitch.
  • Aim for the BF LVDT: 311 um per buoyancy correction.

  • After locking the IRM we checked the IM was free to move.
  • After we locked the payload and BF to the security structure, we removed the H1 OSEM flag and then the front and back panels of the IRM.
  • In two steps we removed a total of 100 grams from the IM and got the BF LVDT to 308 um at the temperature of the moment.

  • Once we finished the adjustment we assembled the IRM and put the OSEM flag back with magnet with the correct polarity.
  • Despite we used the oplev as a reference, apparently we disturbed the pitch by 496 urad approximately. This is should be within picomotor range. Yet to be adjusted.

  • We measured five IM transfer functions and the system looks very healthy. We didn't measure IM-V because the top filter is locked.

On top of Bottom Filter (klog yet to be written)

  • F1 LVDT aim 416 um per buoyancy effect.

  • From IM ballast mass adjustment we calculated how much mass we require for the BF: 2 * 45 grams.
  • We quickly tested the calculation this morning with temporary ballast masses and got it to 412 um.

  • On Monday we will put the masses properly and fix them.

Klog entries

  • 15928 Oplev installation and alignment recovery. , fabian.arellano

    • 15953 Comment, fabian.arellano

  • 15963 IM ballast mass adjustment , fabian.arellano

    • 15975 Comment, fabian.arellano

    • (!) Thursday 15990 Comment , fabian.arellano

    • (!) Thursday 15991 Comment , fabian.arellano

Progress report

General

Type-A

  • [Takahashi] See EY

  • [Takahashi] See IX

Type-B

  • [Fabian?] See SR3

Type-Bp

  • [Miyo] See PR3

  • [Miyo] See PRM

Type-C

  • [Miyo] See MCE

Controls

No update.

Electronics

????

Towards O4

Safety

Discussion

  • [Ikeda] How to rescue the stucked picomotor named BF-T for PR3. klog#15976

  • [Miyo] When and who work on the IMC repairing? This work is not included in the VIS schedule.

    • Making of extension cables with the connector.
    • Fixing of stray wires on the pillar.
    • Fixing of the 22-pin Burndy cable to the connector.
  • [Miyo] Please write klog entry as a comment if it is related work to other entry as Fabian did on klog#15963. If you do so, it is very helpful for future workers to find whether the work is done or not.

Travel Plans

The week from 2/15

  • Takahashi: 2/15-19
  • Sato: 2/15-19
  • Hirata: 2/15-19
  • Yano: 2/15-19

The week from 2/22

  • Takahashi: 2/23-2/28
  • Sato: 2/23-26
  • Hirata: 2/23-26
  • Yano: 2/23-26

Next meeting

  • On 2020/2/19(Fri)

KAGRA/Subgroups/VIS/VISMinutes20210212 (last edited 2021-02-12 21:04:59 by RyutaroTakahashi)