• KAGRA
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• VIS
• VISMinutes20210212

Clear message

Activities in this week

VIS/General

• 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

• 15959 Connection between F3 and F2 , naohisa.satou

• 15972 Cabling between F3 and F2 , naohisa.satou

• 15982 Setup of F2 , ryutaro.takahashi

• Thursday 15993 Setup of F2 , ryutaro.takahashi

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

• 15987 MCe oplev , tomotada.akutsu

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.

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

  • 15979 Comment, satoru.ikeda

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

VIS/PRM

• 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/SR3

• 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

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:

Progress report

General

[Miyo] See Activities/General

Type-A

• 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.

Type-B

Type-Bp

[Miyo] See PR3 [Miyo] See PRM

Type-C

Controls

Electronics

Towards O4

• Type-B/Bp remedy work is on going.
• Installation of Type-A is on going in EY.
• Schedule.

  • Chart

• Procedure documents.

  • Type-A tower installation

  • Limit switches

  • Limit switch connecting guide

  • Replacement of TF blades

  • Wire gluing in PR3

  • Type-B remedying work

• Criteria in the acceptance test.

  • Inspection document (sample)

Safety

Discussion

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

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: 2/23-26
• Sato: 2/22-26
• Hirata: 2/23-26
• Yano: 2/22-26

Next meeting

• On 2020/2/19(Fri)