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| Deletions are marked like this. | Additions are marked like this. |
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| == 2017-09-11 == | == ASAP == |
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| * Debug BF LVDT actuation. * --(Debug other actuation.)-- * --(Remove F0-SF rod and reinstall with hex cable clamp.)-- * --(Route cables up past hex cable clamps.)-- * --(Adjust SF trim mass for pitch/roll/vertical.)-- * --(Route all SF/... cables through to the flange and test.)-- * --(Cable all PI items through to the flange.)-- * --(Disconnect the SS from the AF.)-- * --(Recheck/adjust SF/... yaw.)-- * --(Roughly level the PI so as to make the SS vertical.)-- * --(Unlock the IP and adjust the level of the PI and the horizontal FRs to center the IP.)-- * Check F0 yoke height (top of coil former should be 6 mm above top of baseplate). * Test all PI items: * Yaw stepper. * F0 LVDT sensing * F0 LVDT actuation * --(Horizontal steppers)-- * Horizontal LVDT sensing * Horizontal LVDT actuation * --(Geophones)-- (except one cable broken: #1) * Lock the F0 and SF keystones and measure the resonance frequency of the BF GAS. * --(Lock the F0 and BF keystones and measure the resonance frequency of the SF GAS.)-- 425 mHz * Lock the SF and BF keystones and measure the resonance frequency of the F0 GAS. |
* Improve OL offloading. * Improve GAS offloading. * Spectral analysis of Oplev. * Design, install angular lock servo using OL. * Adjust gains and debug damping for IM OSEMs and GAS LVDTs. * Calibrate IP LVDT actuation against IP LVDT sensing. (Klog 3553? http://klog.icrr.u-tokyo.ac.jp/osl/?r=3553) * Subtract DC level of Geophones. * Spectra analysis of PI sensors (PI LVDTs and Geophones). * Design PI Sensor blending filter. * Modify IP LVDT damping filters to include set point. * Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs. * Set all EQ stops to TBD clearance. * Measure IP period; adjust ballast mass. * TFs. * Modify the model for IP coil driver control * Check IP BIO is working or not. |
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| === In parallel, time permitting === * --(Fix links to ADC_MONITOR screens.)-- * --(Check that all Take/Restore Safe.snap buttons work.)-- * --(Check that we still have all LBB parts (there was an issue with borrowed lock nuts).)-- * --(Wipe LLB damper parts with ethanol.)-- * Figure out how to tighten PI yaw return spring. * --(Install LBB Cu damper ring in tank (less Cu for now).)-- * Fix #1 geophone adapter cable. * Fix broken pico adapter cable |
=== Software === * Update real-time model to number channels from #0. * Do better interface to IP steppers (make a wrapper for Miyo-kun's driver which includes geometry matrix; adapt Shoda-san's version). * Write a guardian. * Sort out SVN. * Create SUMCON model with values commented. |
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| == 2017-09-11 == | === Medm screens === * Remove unused screens. |
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| === Main Assembly Sequence === | === Documentation and Operation Manual === * Publish matrices for IP FRs. * Publish matrices for BS PI sensors v4. * Finish Foton Operation Manual page. * Complete MEDM Operation Manual page. * Pico Motor Operation Manual page. * Add useful info from Enzo's notebook to BSData. |
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| == Dates == * BUMAX countersunk screws for LBB Cu (by 9/20) * SDC screws for LBB half rings: 9/15 (Fri) (have Ag-coated as backup) * LBB Cu segments: 9/19-20 |
=== Design === * Finalize redesign of IP yaw adjuster. * Design better F0 FR adjuster. * Design LBB ballast mass. |
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| * Move safety bars from BS AF area to SR2 area. * Close hole in floor above BS AF area. * Wipe any rust from around IP LVDTs. * Update circuit diagram. * (Time permitting) Try adding mass to IP. |
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| * Get pico drive screens fixed (Miyo-kun) | * Figure out how to make PI yaw adjustment reliable. |
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| * Get clean bag laundered. | |
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| * Lock washers for LBB dampers | |
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| * Swap in new F0-SF maraging rod (with 8-mm heads) and new receptacles to match. | |
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| * Decide final in-vacuum and in-air cable routing (Enzo). * Calibrate all LVDTs (Enzo, Mark). --(BF)--, --(SF)--, PI-GAS, PI-H1, PI-H2, PI-H3 * Adjust yoke on PI to put top of secondary at TBD mm above top of baseplate (or to give ≈0 counts at nominal height). |
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| * Design and install GAS drift compensation filters. |
VIS Type B BS Near Term To-Do List
Every Week
Facilities
- Vacuum and roll floor.
- Wipe ladders.
- Tidy tools, parts.
Get stuff from ../WishList
ASAP
Main Assembly Sequence
- Improve OL offloading.
- Improve GAS offloading.
- Spectral analysis of Oplev.
- Design, install angular lock servo using OL.
- Adjust gains and debug damping for IM OSEMs and GAS LVDTs.
Calibrate IP LVDT actuation against IP LVDT sensing. (Klog 3553? http://klog.icrr.u-tokyo.ac.jp/osl/?r=3553)
- Subtract DC level of Geophones.
- Spectra analysis of PI sensors (PI LVDTs and Geophones).
- Design PI Sensor blending filter.
- Modify IP LVDT damping filters to include set point.
- Calibrate IP LVDT sensing against IP LVDT actuation, IP FRs.
- Set all EQ stops to TBD clearance.
- Measure IP period; adjust ballast mass.
- TFs.
- Modify the model for IP coil driver control
- Check IP BIO is working or not.
Software
- Update real-time model to number channels from #0.
- Do better interface to IP steppers (make a wrapper for Miyo-kun's driver which includes geometry matrix; adapt Shoda-san's version).
- Write a guardian.
- Sort out SVN.
- Create SUMCON model with values commented.
Medm screens
- Remove unused screens.
Documentation and Operation Manual
- Publish matrices for IP FRs.
- Publish matrices for BS PI sensors v4.
- Finish Foton Operation Manual page.
- Complete MEDM Operation Manual page.
- Pico Motor Operation Manual page.
- Add useful info from Enzo's notebook to BSData.
Design
- Finalize redesign of IP yaw adjuster.
- Design better F0 FR adjuster.
- Design LBB ballast mass.
Tasks Not To Forget
Major Tasks
- Move safety bars from BS AF area to SR2 area.
- Close hole in floor above BS AF area.
- Wipe any rust from around IP LVDTs.
- Update circuit diagram.
- (Time permitting) Try adding mass to IP.
- Update BS Install Procedure with screenshots from new on-assembly-frame 3D CAD.
- Finish assembly drawing for LBB and LBB damper ring and post on JGWDoc (Hirata-san).
- Figure out how to make PI yaw adjustment reliable.
Minor Tasks
Mechanical
- Put pointy-tipped screw in RM trolley for BS
- Return/replace borrowed parts:
- Temporary ballast mass (dog clamps) in BF.
Electrical
Real-time and SUMCON models
- Create SUMCON models for full BS and major installation milestones.
Create controls design description (cf LIGO-T1100378).
- Make table of ADC/DAC assignments and check for consistency with D1503600 and k1visbs (Enzo, Mark)
- Understand/document/debug Kokeyama-san's DIO stuff.
- Measure LPCD and HPCD output filter response.
- Design and install software compensation filters for LPCD and HPCD output filters.