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Size: 5910
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Size: 6778
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| Participants : | Participants : |
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| * ballast mass adjustment | * ballast mass adjustment |
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| * ballast mass adjustment | * ballast mass adjustment |
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| * SR2 * ballast mass adjustment |
* SR2 * ballast mass adjustment |
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| * ballast mass adjustment | * ballast mass adjustment |
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| * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16084|16084]] Remedy of F0 , __ryutaro.takahashi__ | * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16084|16084]] Remedy of F0 , __ryutaro.takahashi__ |
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| * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16142|16142]] IP and F0 stepper motor limit switches. , __fabian.arellano__ | * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16142|16142]] IP and F0 stepper motor limit switches. , __fabian.arellano__ |
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| * On Monday we removed the jigs from the F0 blades and began adjusting the compression by 2 mm at the time. * This work was mostly finished on Wednesday. We gave the jigs to Type-A team in the afternoon. Blades 1, 3, 4 and 5 still require some compression. See [[https://photos.app.goo.gl/nzXUoTYVzXdZVLir7|this notebook page for details]]. * On Thursday we lowered the keystone and hooked the suspension rod. Then we lifted the keystone until there was some tension in the rod. We didn't proceed with the assembly of the keystone assembly because lifting the load would be required. * We installed and tested F0 vertical fishing roid switches. We checked the polarity of the motor also. It was correct. * We assembled the F0 yaw stepper motor, tested the limit switches and the polarity. We were all fine. We left the motor on IP table. |
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| * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16036|16036]] Cabling for temperature control equipment , __satoru.ikeda__ | * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16036|16036]] Cabling for temperature control equipment , __satoru.ikeda__ |
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| * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16118|16118]] Setup of filter chain , __ryutaro.takahashi__ | * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16118|16118]] Setup of filter chain , __ryutaro.takahashi__ |
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| * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16091|16091]] Monitoring of IP by ITMY venting , __satoru.ikeda__ | * [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=16091|16091]] Monitoring of IP by ITMY venting , __satoru.ikeda__ |
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| * [[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=15976|15976]] Picomotor of PR3_BF_T(Motor2) got stuck , __satoru.ikeda__ |
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Contents
Agenda/Minutes
CRY+VIS Interface Meeting
Date : 13:30-
Participants :
Schedule
- IX: Oplev setting will be finished by 3/10. Mystery of 5-kg overload. The ballast on the F0 is too tall.
- IY: The vent was finished on 3/2. Disconnection is scheduled on 3/11.
- EX: Connection is scheduled in the week of 3/15.
Status
- Corrugate tube fixing jig: Re-measurement was performed in 2/25-3/2 at IYV.
- Commissioning in air: Commissioning of ITMX is delay. From April?
- Commissioning in vacuum: From May?
- Acceptance check: Cryo-payload in IX/EX and Type-A tower in EY/IX are on going.
- PF actuator: Not evaluated in IX, but after the commissioning for suspension.
- Jig for FC painting:
- Overall commissioning: Schedule meeting is requested (after JPS meeting?).
Discussion
- [Miyo] オフロード作業を無くすためのアイデア募集
- 問題意識：真空圧力が変わるとIPが傾いてPayloadが自身のEQフレームに当たる。（完全に傾かないようにする治具はそもそも不可能なので、傾いても大丈夫なアイデアがほしい。）
[Miyo] そもそも、IPが傾いてIPのEQストップに当たった状態でもPayloadも同じく当たらないよう十分に退避させれば良い話に思える。その場合、IPがEQに当たった状態でFRをつかってもとに戻せるかどうか確認すべき。これはAcceptanceCheckに追加すべきか？
VIS Meeting
14:00-
Participants:
Schedule
* The next week
- Type-A team: 3/9 IXV filter setting, 3/10-11 IYV payload disconnection
- Type-B team: 3/9 EXV withdrawal, 3/10-12 PR/SR adjustment
* [Miyo] Please check the remaining tasks for PRs and SRs (hardware )
- PR3
- PR2
- noise floor check
Install OpLev
- Calibration check
- PRM
- replace the LVDT circuit for BF damper. it is broken.
- noise floor check
- calibration check
- BS
- ballast mass adjustment
- noise floor check
- calibration check
- SR3
- ballast mass adjustment
- noise floor check
- calibration check
- SR2
- ballast mass adjustment
Install OpLev
- noise floor check
- calibration check
- SRM
- ballast mass adjustment
Install OpLev
- noise floor check
- calibration check
klog
EX
16142 IP and F0 stepper motor limit switches. , fabian.arellano
16084 Remedy of F0 , ryutaro.takahashi
16142 IP and F0 stepper motor limit switches. , fabian.arellano
16159 Comment , fabian.arellano
- On Monday we removed the jigs from the F0 blades and began adjusting the compression by 2 mm at the time.
This work was mostly finished on Wednesday. We gave the jigs to Type-A team in the afternoon. Blades 1, 3, 4 and 5 still require some compression. See this notebook page for details.
- On Thursday we lowered the keystone and hooked the suspension rod. Then we lifted the keystone until there was some tension in the rod. We didn't proceed with the assembly of the keystone assembly because lifting the load would be required.
- We installed and tested F0 vertical fishing roid switches. We checked the polarity of the motor also. It was correct.
- We assembled the F0 yaw stepper motor, tested the limit switches and the polarity. We were all fine. We left the motor on IP table.
General
- 16144 I turned off the electronics in VIS racks in the central room. , fabian.arellano
16036 Cabling for temperature control equipment , satoru.ikeda
16114 Comment , satoru.ikeda
IX
16118 Setup of filter chain , ryutaro.takahashi
IY
16091 Monitoring of IP by ITMY venting , satoru.ikeda
16106 Comment , satoru.ikeda
16107 Comment , kouseki.miyo
16115 Comment , satoru.ikeda
16119 Comment , satoru.ikeda
MCE
16101 Preparation for fixing the MCe coil cable , naohisa.satou
MCF
- 16157 Investigation of IMC suspensions , ryutaro.takahashi
PR3
Progress report
TypeA
- Replacement of LVDT coils for F0 was finished in EX.
- Tuning of the filter chain is on going in IX.
TypeB
TypeBp
TypeC
- Investigation and recovery of the IMC suspensions were performed on 3/4.
Electronics
Control
Safety
Discussion
Travel Plans
The week from 3/8
- Takahashi: 3/8-3/12
- Sato: 3/8-3/12
- Hirata: 3/8-3/12
- Yano: 3/8-3/12
The week from 3/15
- Takahashi: 3/15-18
- Sato: 3/15-19
- Hirata: 3/15-19
- Yano: 3/15-19
Next meeting
- 2021/3/12(FRI)