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## page was renamed from KAGRA/Subgroups/VIS/VISMinutes20160720
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Participants: Participants:Hirata, Takahashi, Okutomi, Mark, Ishizaki, Tanaka, Sato, Shoda, Fabian, Aso, Ohishi
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Schedule Chart ([[https://www.dropbox.com/s/in8snejffra66as/VIS%20Overall%20Schedule%2020160720.pdf?dl=0|PDF]],[[https://www.dropbox.com/s/byl5lkwhp0p25kb/VIS%20Overall%20Schedule-160720.mpp?dl=0|MPP]]) Schedule Chart ([[https://www.dropbox.com/s/in8snejffra66as/VIS%20Overall%20Schedule%2020160720.pdf?dl=0|PDF]],[[https://www.dropbox.com/s/byl5lkwhp0p25kb/VIS%20Overall%20Schedule-160720.mpp?dl=0|MPP]]) -> Something wrong with the Project Server. Aso will try to fix it.
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 * Put a report here  * [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeA|Minutes of Type-A Meeting]]
 * Simulation (Okutomi)
  * Will calculate the requirements for the sensor noise
  * Will calculate the requirements for the actuator coupling and coil driver noise
 * Type-A installation procedure review in the second week of August.
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 * Put a report here [[KAGRA/Subgroups/VIS/MeetingNAOJ]]

 * Type B Past Week Summary
  * Hirata-san wiped one set each of wires for the BS and RM (additional sets pending).
  * Hirata-san washed remachined locking parts for the IM and screws for jacks.
  * Hirata-san liaised with Ikenoue-san of ATC to get new winch parts designed for the new wire thicknesses. Ikenoue-san provided updated designs for checking.
  * Hirata-san worked on the Inventor 3D assembly of the SR2.
  * The scale for checking the masses of the IM parts arrived.
  * Fabian and Hirata-san assembled the IRM and identified an issue with the Teflon-coated lock screws between the IM and IRM. The screws were slightly too large, and correcting the size with a die caused large flakes of the black coating to come off. (These screws were ordered before the current screw policy was instituted.) Hirata-san will order SDC-coated screws from Misumi and have additional machining done on them.
  * Fabian tracked down the calibration factors for the geophones and generated a calibrated [[attachment:Geophone_Kamioka.png|plot]].
 * Type B ongoing issues
  * OSEMs
   * Akutsu-san is working to get wide-mouth OSEMs ([[http://klog.icrr.u-tokyo.ac.jp/osl/?r=1853|2 assembled]]; first 4 expected to be assembled and washed by 8/8)
  * Longer cables for BF->PI and SF->PI ORDERED.
  * 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
  * 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.
  * Reglue flags and prisms (Tatsumi, Fabian)
  * Clean wire for BS and RM (Hirata) - DONE
  * Get new winch parts for new wire diameters - design received from Ikenoue-san
  * Do fit/function test of winches (Fabian/Hirata)
  * Ship winches to Kamioka (Hirata/Fabian)
  * Work on BS simulation (Fabian)
  * Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata) - ONGOING.
  * 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)
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 * Put a report here  * Basic Design Review [[http://gwwiki.icrr.u-tokyo.ac.jp/JGWwiki/KAGRA/Subgroups/VIS/TypeBp/meeting160721|minute]]
 * Contacted with some companies. (Cost estimate will be done by ATC.)
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 *  * Wide OSEM production and test plan (Akutsu, Aso)
  * Steps
   * Test assemble a few (Akutsu)
   * Noise check (Who ?)
    * Change the supply current of a satellite amplifier (find the optimal value for the wide OSEM).
    * Calibration
    * Noise measurements
   * Mass production of wide OSEMs (Akutsu)
    * Calibration and simple noise check
   * Ship to Kamioka
   * Change the supply current of the satellite amplifiers (who ?)
  * Deadline for delivery ?
 * LVDT test
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  * Hirata:    * Hirata:
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2016/7/29(Fri) 13:30 -  2016/7/29(Fri) 13:30 -

Agenda/Minutes of the VIS Meeting on 2016/7/22

2016/7/22 13:30 - @ Room 210

Participants:Hirata, Takahashi, Okutomi, Mark, Ishizaki, Tanaka, Sato, Shoda, Fabian, Aso, Ohishi

Progress report

Schedule Chart (PDF,MPP) -> Something wrong with the Project Server. Aso will try to fix it.

Type-A (Takahashi)

  • Minutes of Type-A Meeting

  • Simulation (Okutomi)
    • Will calculate the requirements for the sensor noise
    • Will calculate the requirements for the actuator coupling and coil driver noise
  • Type-A installation procedure review in the second week of August.

Type-B (Mark)

KAGRA/Subgroups/VIS/MeetingNAOJ

  • Type B Past Week Summary
    • Hirata-san wiped one set each of wires for the BS and RM (additional sets pending).
    • Hirata-san washed remachined locking parts for the IM and screws for jacks.
    • Hirata-san liaised with Ikenoue-san of ATC to get new winch parts designed for the new wire thicknesses. Ikenoue-san provided updated designs for checking.
    • Hirata-san worked on the Inventor 3D assembly of the SR2.
    • The scale for checking the masses of the IM parts arrived.
    • Fabian and Hirata-san assembled the IRM and identified an issue with the Teflon-coated lock screws between the IM and IRM. The screws were slightly too large, and correcting the size with a die caused large flakes of the black coating to come off. (These screws were ordered before the current screw policy was instituted.) Hirata-san will order SDC-coated screws from Misumi and have additional machining done on them.

    • Fabian tracked down the calibration factors for the geophones and generated a calibrated plot.

  • Type B ongoing issues
    • OSEMs

      • Akutsu-san is working to get wide-mouth OSEMs (2 assembled; first 4 expected to be assembled and washed by 8/8)

    • Longer cables for BF->PI and SF->PI ORDERED.

    • 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
  • To-do list during Mark's vacation
    • 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.
    • Reglue flags and prisms (Tatsumi, Fabian)
    • Clean wire for BS and RM (Hirata) - DONE
    • Get new winch parts for new wire diameters - design received from Ikenoue-san
    • Do fit/function test of winches (Fabian/Hirata)
    • Ship winches to Kamioka (Hirata/Fabian)
    • Work on BS simulation (Fabian)
    • Do Inventor assembly for SR2 in chamber and on assembly frame (Hirata) - ONGOING.
    • 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-Bp (Shoda)

  • Basic Design Review minute

  • Contacted with some companies. (Cost estimate will be done by ATC.)

IMMT (Ohishi)

  • Put a report here

Watchdog system (Tanaka)

  • Put a report here

Safety

  • Any issue ?

Discussion

  • Inertial Sensors for Type-B (Fabian)
  • Wide OSEM production and test plan (Akutsu, Aso)
    • Steps
      • Test assemble a few (Akutsu)
      • Noise check (Who ?)
        • Change the supply current of a satellite amplifier (find the optimal value for the wide OSEM).
        • Calibration
        • Noise measurements
      • Mass production of wide OSEMs (Akutsu)
        • Calibration and simple noise check
      • Ship to Kamioka
      • Change the supply current of the satellite amplifiers (who ?)
    • Deadline for delivery ?
  • LVDT test

Site work plan for the next week

  • Mon:
  • Tue:
  • Wed:
  • Thu:
  • Fri:

Travel Plans

  • Travel (Week of 7/25):
    • Takahashi:
    • Shoda:
    • Mark: 25-29 ?
    • Fabian: 25-29 ?
    • Okutomi:
    • Fujii:
    • Ishizaki:
    • Hirata:
    • Sato:
    • Ohishi:
  • Travel (Week of 8/1):
    • Takahashi:
    • Shoda:
    • Mark: 1 - 5 ?
    • Fabian: 1 - 5 ?
    • Okutomi:
    • Fujii:
    • Ishizaki:
    • Hirata:
    • Sato:
    • Ohishi:

Next meeting

2016/7/29(Fri) 13:30 -

KAGRA/Subgroups/VIS/VISMinutes20160722 (last edited 2016-07-27 14:40:36 by YoichiAso)