367
Comment:
|
910
|
Deletions are marked like this. | Additions are marked like this. |
Line 5: | Line 5: |
* Activity report for week of 12/19 * Mark and Fabian checked Hirata-san's drawings and parts/fastener lists for the SRM/PRM order. * [[KAGRA/Subgroups/VIS/VISMinutes/20161216#BFIssue|BF issue]] * Aso-san and Mark decided to have the BS bottom filter |
* Hirata-san: * Did drawings of SR damper. * Mark, Fabian, Enzo and Hirata-san (at Kamioka): * Took the end plate off the IM to get access to the pitch/roll picos. * Found the pitch pico was unreliable and replaced it. * Found the springs were not stiff enough, and immobilized 7 turns at the end of each with Cu wire to make them stiffer. * Reassembled and rebalanced the IM. * Reassembled and adjusted the IRM. * Discovered that the transverse offset between IRM and IM could be corrected by adjusting the roll of the BF. * Adjusted IM OSEMs to half-way. * Made and installed a new pair of wires for the BF yaw pico on the IM pico adapter (Hirata-san). * Installed an improved LVDT cable made by Hirata-san. * Made and hung posters for the Elites meeting visitors. |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
- Hirata-san:
- Did drawings of SR damper.
- Mark, Fabian, Enzo and Hirata-san (at Kamioka):
- Took the end plate off the IM to get access to the pitch/roll picos.
- Found the pitch pico was unreliable and replaced it.
- Found the springs were not stiff enough, and immobilized 7 turns at the end of each with Cu wire to make them stiffer.
- Reassembled and rebalanced the IM.
- Reassembled and adjusted the IRM.
- Discovered that the transverse offset between IRM and IM could be corrected by adjusting the roll of the BF.
- Adjusted IM OSEMs to half-way.
- Made and installed a new pair of wires for the BF yaw pico on the IM pico adapter (Hirata-san).
- Installed an improved LVDT cable made by Hirata-san.
- Made and hung posters for the Elites meeting visitors.