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| * Type B Past Week Summary * Fabian took photos of the cleanroom in the ATC to help decide whether it is a good place to assemble PIs for Type A/B. * Hirata-san ordered and received wire for the BS and RM (will be cleaned 7/19). * Hirata-san received remachined locking parts for the IM (will be cleaned 7/19). * Hirata-san ordered additional Misumi parts to be used with the IM locking parts. * Fabian and Hirata-san weighed the masses that they've been constructing in the cleanroom and found a 600 g discrepancy from the Inventor (too light) for the IM. Although the density assumed in the Inventor agrees with spec sheet values, it doesn't match the parts. Adjusting the density to match a few key parts reduces the discrepancy to 60 g. More investigation is planned. * Hirata-san ordered a medium-capacity scale to weigh the individual parts more precisely and help locate the discrepancy. * Hirata-san organized to do a fit/function test of the BS winches and training session with Ikenoue-san of ATC on 7/25. * Hirose-san and his team successfully removed the misglued prisms from the dummy BS. * Fabian travelled to Kashiwa and removed most of the glue from the face of the dummy BS (where the flags had been). There is still some adhesive remaining on both the face and barrel, which will require more work in a second trip. * Shoda-san took a suitable segment of geophone noise data for analysis. Fabian will track down the calibration factors. * Hirata-san worked on 2D drawings for the PI cable clamps and the magnetic damper for the lower breadboard. * Hirata-san worked on the 3D assembly for SR2. * Type B ongoing issues * OSEMs * Akutsu-san is working to get wide-mouth OSEMs * Longer cables for BF->PI and SF->PI. * Connectors RECEIVED, cables being made. * SR machining test ongoing. * Lower breadboard stuff * Installation to be incorporated into the procedure document. Mark/Takahashi to discuss. * Breadboard springs (in manufacture, expected end of July) * Documents * BS Assembly Procedure [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=4235| E1504235]], [[https://onedrive.live.com/redir?resid=D5CCFA70A378E0D0!195&authkey=!AM_usynuo9QI57g&ithint=folder,webloc|E1504235 draft]] * To-do list during Mark's vacation * Apply grease to jacks for assembly frame (Takahashi) - DONE * Finish assembly of BS IM, RM and IRM (Fabian) - DONE * Weigh IM/RM/IRM (Fabian, Hirata) - DONE but anomalies found. * Pack/ship IM/RM/IRM to Kamioka (Hirata/Fabian). * Analyze geophone data (Fabian/Shoda) - data taken by Shoda-san; Fabian to find calibration factors. * Remove glue from dummy BS face (Fabian) - partly done. * Remove prism from dummy BS (Hirose, Fabian?) - DONE * Reglue flags and prisms (Tatsumi, Fabian) * Buy wire for BS and RM (Hirata) - DONE * Clean wire for BS and RM (Hirata) - 7/19 * Do fit/function test of winches (Fabian/Hirata) - ORGANIZED for 7/25 * Ship winches to Kamioka (Hirata/Fabian) * Work on BS simulation (Fabian) * Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata) - just started. * Write more of payload assembly procedure (Fabian) * Write more of main assembly procedure (Mark) * Longer term to-do list * Do BS Simulink model (Mark, Kokeyama) * Do 2D drawings of SR2 parts (Hirata) * Redesign SRx IM wire clamps for larger prisms, remachined RMs. * Order SRM/PRM parts (Hirata/Shoda) * Order SRx fasteners (Hirata) * Check SR RM machining test progress (Hirata) |
=== Type B (Mark) === ==== Report for week of 5/28 ==== * Enzo and Mark debugged the BS BIO connections and finally got it working. There were a total of four issues identified: * A wrong block used in the BS real-time model. * The real-time model deciding to treat the cards as numbered backwards from the slot order or the jumper settings. * Two unlabeled cables that may have been swapped. * The GAS coil driver and associated cables had been labeled HPCD #1 whereas it had been #0 in the diagram. * Hirata-san and Kozu-kun received the final F0 blades, characterized 6 of them and, with help from Takahashi-san, installed a matched set of 3 into PI #3. It appears to be 6 kg short of the load capacity that was targeted, but still with 4 kg of margin. It is close to having a good frequency but needs another round of tuning. * Mark and Terrence fixed an issue with the security structure - due to a screenshot of the CAD not updated from the BS procedure to the SR one, the BF ring had been placed 180° off in yaw. We suspended the BF from the load gauge adapter, reconfigured the BF jacks to support the ring instead of the BF, and rotated the ring. Mark corrected the procedure. ==== Plan for week of 6/11 ==== * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Tue-Fri (Mon is compensation day for f2f.) * -- * Route cables through SF-BF flying saucer up to bottom of SF. * Add minimal ballast mass to SF (rough balance only) and weigh SF/... section. * Adjust BF trim mass. * Readjust payload. * Take TFs. * Cable, test SF LVDT and FR. * Add calculated ballast to SF. * Finish tuning F0 #3 for SR3. * Park F0 #1 (for SR2) in top of SR3 assembly frame. * Move F0 #3 behind SR3. * Move F0 #1 to "factory" area (in front of SRM) and start rebuild. ==== Plan for week of 6/18 ==== * Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri. * -- * Install PI. * Suspend SF/... section. * Lots of cabling. ==== To-Do Lists, Schedule ==== * [[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 ==== |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Report for week of 5/28
- Enzo and Mark debugged the BS BIO connections and finally got it working. There were a total of four issues identified:
- A wrong block used in the BS real-time model.
- The real-time model deciding to treat the cards as numbered backwards from the slot order or the jumper settings.
- Two unlabeled cables that may have been swapped.
- The GAS coil driver and associated cables had been labeled HPCD #1 whereas it had been #0 in the diagram.
- Hirata-san and Kozu-kun received the final F0 blades, characterized 6 of them and, with help from Takahashi-san, installed a matched set of 3 into PI #3. It appears to be 6 kg short of the load capacity that was targeted, but still with 4 kg of margin. It is close to having a good frequency but needs another round of tuning.
- Mark and Terrence fixed an issue with the security structure - due to a screenshot of the CAD not updated from the BS procedure to the SR one, the BF ring had been placed 180° off in yaw. We suspended the BF from the load gauge adapter, reconfigured the BF jacks to support the ring instead of the BF, and rotated the ring. Mark corrected the procedure.
Plan for week of 6/11
- Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Tue-Fri (Mon is compensation day for f2f.)
- --
- Route cables through SF-BF flying saucer up to bottom of SF.
- Add minimal ballast mass to SF (rough balance only) and weigh SF/... section.
- Adjust BF trim mass.
- Readjust payload.
- Take TFs.
- Cable, test SF LVDT and FR.
- Add calculated ballast to SF.
- Finish tuning F0 #3 for SR3.
- Park F0 #1 (for SR2) in top of SR3 assembly frame.
- Move F0 #3 behind SR3.
- Move F0 #1 to "factory" area (in front of SRM) and start rebuild.
Plan for week of 6/18
- Mark Enzo, Hirata-san, Kozu-kun, Terrence at Kamioka Mon-Fri.
- --
- Install PI.
- Suspend SF/... section.
- Lots of cabling.
To-Do Lists, Schedule