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| * Hirata-san: * Made BS disposable wire clamp 3Dmodel and drawings. * Made ballast mass drawings for BS Bottomfilter and Standardfilter. * Made parts list and screw list for disposable wire clamp and ballast mass. * Sent drawings and lists to i-ject for quotation. * Start to make drawings for SR big parts (optical bench,damper rings,sus wires,cable clamps) - ongoing. * Mark, Fabian and Enzo (at Kamioka): * Realized that some of the imbalance in the BF was from the fishing rod and calculated a new set of blade offsets to center the rod but leave the torque from the FR to be cancelled by the trim mass for now. * Applied the blade offsets and checked that the BF hung as expected. * Found that the yoke was rubbing again and corrected it by putting it at an angle matching the keystone. * Found that the cables were adding too much stiffness and friction and rerouted them. * Found that the GAS was unstable and reduced the compression symmetrically to get 0.37 Hz. * Rebalanced the IM to set the right pitch, yaw and height. * Tested the IM picos. Unfortunately the pitch pico stuck near or at one end of its range and we will need to take the end plate off the IM to find out what is wrong. |
=== Type B (Mark) === ==== Report for week of 3/26 ==== * We finished tuning of BF No. 1. * We wired the LVDT, Picomotor and StepperMotor of BF No. 1. * We finished tuning of BF No. 7. * We wired the LVDT, Picomotor and StepperMotor of BF No. 7. * SF check (Hirata-san++). * We checked the load capacity with and without the cap. * We checked fit of caps. For the SF No. * Add cable clamps to bases. * Add cable clamps and Cu segments to caps (only if they fit well). * Cable LVDTs and steppers. * We finished the SR3 in-air cabling. ==== Plan for week of 4/2 ==== * Mark at Mitaka Mon, Kamioka from Tue. * Shoda-san at Mitaka * Others at Kamioka * -- * Glue SR3 (if available) * Build 2xIM, 2xIRM (if parts available - due 3/30) ==== Plan for week of 4/9 ==== * Shoda-san at Mitaka * Others at Kamioka * -- * Finish IMs and IRMs * Build 1xRM ==== Plan for week of 4/16 ==== * Start SR3 Hang? ==== Plan for week of 4/23 ==== * F0 blade prototype test ==== Plan for week of 4/30 ==== * Golden Week! ==== To-Do Lists, Schedule ==== * [[KAGRA/Subgroups/VIS/TypeB/March2018]] * [[KAGRA/Subgroups/VIS/TypeB/April2018]] * [[KAGRA/Subgroups/VIS/TypeB/ToDoBS]] * [[KAGRA/Subgroups/VIS/TypeB/ToDoSR]] * [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=7779|JGW-L1807779-v1 Type B Schedule (SR)]] ==== Vacation Info ==== * Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun) * Fabian vacation, 3/26-4/27 (then gone). |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 3/26
- We finished tuning of BF No. 1.
We wired the LVDT, Picomotor and StepperMotor of BF No. 1.
- We finished tuning of BF No. 7.
We wired the LVDT, Picomotor and StepperMotor of BF No. 7.
- SF check (Hirata-san++).
- We checked the load capacity with and without the cap.
- We checked fit of caps. For the SF No.
- Add cable clamps to bases.
- Add cable clamps and Cu segments to caps (only if they fit well).
- Cable LVDTs and steppers.
- We finished the SR3 in-air cabling.
Plan for week of 4/2
- Mark at Mitaka Mon, Kamioka from Tue.
- Shoda-san at Mitaka
- Others at Kamioka
- --
- Glue SR3 (if available)
- Build 2xIM, 2xIRM (if parts available - due 3/30)
Plan for week of 4/9
- Shoda-san at Mitaka
- Others at Kamioka
- --
- Finish IMs and IRMs
- Build 1xRM
Plan for week of 4/16
- Start SR3 Hang?
Plan for week of 4/23
- F0 blade prototype test
Plan for week of 4/30
- Golden Week!
To-Do Lists, Schedule
Vacation Info
- Mark at LVC, then vacation, 3/18 (Sun) - 4/1 (Sun)
- Fabian vacation, 3/26-4/27 (then gone).