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| * Type B Past Week Summary * Mark (with Enzo) did initial TFs on the BF. * Did fixed-sine TFs on individual OSEMs at low frequency to check actuator polarity (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2176 | 2176]] and [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2182|2182]]). * Set gains in the COILOUTF block to compensate for actuator polarity. * Mark (with Enzo) did a free-swing measurement on the BS after earthquake of 11/22 (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2182|2182]]). * Results suspicious (noted by Shoda-san): too much difference between OSEMs - horizontal showing much less motion than vertical. * Possible rubbing in horizontal. * May need a trip to Kamioka. * Mark (with Enzo) made corrections and improvements to many of the MEDM screens (klog [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2176 | 2176]] and [[http://klog.icrr.u-tokyo.ac.jp/osl/?r=2182|2182]]). * Main overview screen was not generic in many places, and links to GDS_TP screens were broken. * ADC monitor screen referenced bad channels with LIGO-style names. * DAC monitor screen was not generic and did not support IM OSEMs. * Watchdog IM OSEM AC band limit filter screen was a copy of the TM one. * Watchdog TM OSEM AC band limit filter screen appears to be getting OL signals as input - needs model changes to fix. * The zoomed screens for IM OSEM centering were called incorrectly and did not work. * Various screens had LIGO-style channel names as labels. * Mark did a draft of D1603600-v12, including: * New assignment of IM OSEMs to DAQ channels (#4-9 are now V1, V2, V3, H1, H2, H3 rather than H1, H2, ...) from last Friday (the wiring was changed to reflect the model so as to remain consistent with PRx). * Information on how to identify the wires from the steppers and LVDTs so that the adapter cables can be plugged in properly. * Mark worked on schedule. * Hirata-san did drawings for new 8-mm maraging wires for Type A. * Hirata-san worked on PR/SR mirror box modifications with Shoda-san. |
=== Type B (Mark) === ==== Past two weeks report ==== At Kamioka (Mark, Enzo, Kozu-kun): * Supported IA team. * Replaced LPCDs for IM OSEMs with HPCDs for increased pitch/yaw range. * Re-zeroed OL after significant change of beam position during IA. * Re-laid-out OL to improve focus of lens to LEN QPD. * Offloaded the pitch/yaw actuation at the IM OSEMs using the IM pitch/yaw picos. * Enzo worked on design of control loops using the OL. * Kozu-kun worked on diagonalizing the OL. Mitaka (Fabian, Hirata-san): * Hirata-san published his inventory of SR parts on Dropbox. ==== Plan for week of 11/13 ==== Kamioka: Mark * Attend commissioning workshop at U Toyama. * Be person-on-site for BF work. * Set up for mirror gluing. Mitaka: Fabian and Hirata-san * SR procurement. * New PI GAS FR design. * BS LBB ballast mass design. * SR cable lamp design. Mitaka: Enzo and Kozu-kun (Wed, Thu) * Servos * TFs of BF * Documentation |
Scraps of text for incorporation in the VIS Meeting Minutes
KAGRA/Subgroups/VIS/MeetingNAOJ
Type B (Mark)
Past two weeks report
At Kamioka (Mark, Enzo, Kozu-kun):
- Supported IA team.
- Replaced LPCDs for IM OSEMs with HPCDs for increased pitch/yaw range.
- Re-zeroed OL after significant change of beam position during IA.
- Re-laid-out OL to improve focus of lens to LEN QPD.
- Offloaded the pitch/yaw actuation at the IM OSEMs using the IM pitch/yaw picos.
- Enzo worked on design of control loops using the OL.
- Kozu-kun worked on diagonalizing the OL.
Mitaka (Fabian, Hirata-san):
- Hirata-san published his inventory of SR parts on Dropbox.
Plan for week of 11/13
Kamioka: Mark
- Attend commissioning workshop at U Toyama.
- Be person-on-site for BF work.
- Set up for mirror gluing.
Mitaka: Fabian and Hirata-san
- SR procurement.
- New PI GAS FR design.
- BS LBB ballast mass design.
- SR cable lamp design.
Mitaka: Enzo and Kozu-kun (Wed, Thu)
- Servos
- TFs of BF
- Documentation