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| 2020/5/15 14:00 - | 2020/5/15 14:00 - 14:40 |
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| Participants: | Participants: Takahashi, Hirata, Fabian, Sato, Aso, Miyo, Tanaka, Lucia, Shoda |
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| * Monitoring the status. * Started the paper project on Type-A mechanics. * Integrated ３D model of each Type-A tower.(JGW-D2011655) * According to the 3D model, it was found that the placement of the BF Dumper is offset by 5 degrees from the beam line (EX, EY only) [[attachment:ETM BF Dumper.pdf]] |
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| * Type-B paper: I wrote a [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeB/PaperTODOlist|TO DO list]] which roughtly works as an outline. Thank you Shoda-san for your comments! * In case it's not possible to measure the quality factors due to time constraints related to the pandemic, we can cite the prototype paper instead where similar measurements were reported. * Include long term drift observation of the optic orientation using the oplev. * Check what Terence did about inertial damping. He wrote good klog entries but there's still not enougn information to understand the detail. I will ask him once he becomes avilable to us sometime next month. * Inertial damping: I have been checking what Takanori did and I've been trying to adapt it to the case of SR2 using the Matlab simulation. I have questions but I'm not ready to ask. I will do it sometime soon via e-mail. |
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| * Started making 3D model of the present IMMT2 suspension. |
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| * Finished initial design of the additional filter for combiner. * Prepare for the test parts and start the experiments. |
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| * Type-A: Shoda(Mechanical), Lucia(Performance), Fujii(Sensor collection). | * Type-A: Shoda(Mechanics), Lucia(Performance), Fujii(Sensor collection). |
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| * We have 15-min. slot on the future plan of VIS in the KAGRA Telecon. | |
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| On 2020/5/22(Fri) | * On 2020/5/22(Fri) |
Agenda/Minutes of the VIS Meeting on 2020/5/15
2020/5/15 14:00 - 14:40
Participants: Takahashi, Hirata, Fabian, Sato, Aso, Miyo, Tanaka, Lucia, Shoda
Progress report
General
Type-A
- Monitoring the status.
- Started the paper project on Type-A mechanics.
- Integrated ３D model of each Type-A tower.(JGW-D2011655)
According to the 3D model, it was found that the placement of the BF Dumper is offset by 5 degrees from the beam line (EX, EY only) ETM BF Dumper.pdf
Type-B
Type-B paper: I wrote a TO DO list which roughtly works as an outline. Thank you Shoda-san for your comments!
- In case it's not possible to measure the quality factors due to time constraints related to the pandemic, we can cite the prototype paper instead where similar measurements were reported.
- Include long term drift observation of the optic orientation using the oplev.
- Check what Terence did about inertial damping. He wrote good klog entries but there's still not enougn information to understand the detail. I will ask him once he becomes avilable to us sometime next month.
- Inertial damping: I have been checking what Takanori did and I've been trying to adapt it to the case of SR2 using the Matlab simulation. I have questions but I'm not ready to ask. I will do it sometime soon via e-mail.
Type-Bp
Type-C
- Started making 3D model of the present IMMT2 suspension.
Controls
Electronics
- Finished initial design of the additional filter for combiner.
- Prepare for the test parts and start the experiments.
Post O3
- KAGRA is in the suspended mode until 31st May.
Only measurements, which can be done remotely, are available (Request).
- Papers
- Type-A: Shoda(Mechanics), Lucia(Performance), Fujii(Sensor collection).
- Type-B: Fabian
Safety
Discussion
- We have 15-min. slot on the future plan of VIS in the KAGRA Telecon.
Travel Plans
Next meeting
- On 2020/5/22(Fri)