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Size: 3629
Comment:
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Size: 4605
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
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| == ITM Suspensions == The ITMs are being changed into SOS. For this we will need to fab 2 SOS towers. We will re-use existing OSEMs and misc in-vac hardware. |
<<TableOfContents(2)>> == ►Suspension records == |
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| === SOS Updates (Mostly ITMs, but where applicable, extra parts for other new Optics): === | X/Y are named with the NEW convention. |
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| 29 Oct 2009 || '''Item''' || '''# in Drawing D960001''' || '''DCC / Part Number''' || '''Qty Needed PER SUS''' || '''Qty Needed for Upgrade''' || '''Qty Have IN HAND''' || '''Plan''' || || Sensor/Actuator Plate || 1 || D960002 || 2 || 4 || 4 || DONE || || Suspension Block || 2 || D960003 || 1 || 2 || 2 || DONE || || Tower Base || 3 || D960004 || 1 || 2 || 2 || DONE || || Right Side Plate || 4 || D960005 || 1 || 2 || 2 || DONE || || Left Side Plate || 5 || D960006 || 1 || 2 || 2 || DONE || || Upper Mirror Clamp || 6 || D960007 || 1 || 2 || 2 || DONE || || Lower Clamp || 7 || D960008-1 || 1 || 2 || 2 || DONE || || Lower Clamp, Opposite || 8 || D960008-2 || 1 || 2 || 2 || DONE || || Wire Clamp || 9 || 1205308-1 (kind of #?) || 1 || 2 || 3 || DONE || || Clamp, Suspension Block || 10 || D960134 || 2 || 4 || 5 || DONE || || Stiffener Plate || 11 || D960009 || 1 || 2 || 2 || DONE || || Dumbbell Standoff || 12 || D970075 || 6 || 7 optics x 6 = 42 || 15 in boxes from LLO, plus many in Bob's cleanroom || done? || || Safety Stop, Long || 13 || D970313 || 2 || Enough to replace EQ stops for ALL optics? || || Buy screws from McMaster, drill holes for viton, clean&bake, insert viton || || Optic || 14 || Various || 1 || || || DONE when delivered from ATF || || Sensor/Actuator Assembly || 15 || D960011 || 5 || 10 || 6 short OSEMS in SUS Clean Plastic Box || Reuse (long) OSEMs from current ITM MOSs - DONE || || Wire Standoff || 16 || D970187 || 2 || 7 optics x 2 + spares = 18 || 7 || Requested 25 from Shop. Expected in 1-2 weeks || || Guide Rod || 17 || D970188 || 2 || 7 optics x 2 + spares = 18 || 3 || Requested 25 from Shop. Expected in 1-2 weeks || || Magnet || 18 || D960501 || 6 || 7 optics x 6 = 42 || ~100 in Bob's Cleanroom || DONE - need to match sets still || || Safety Stop, Small || 19 || D960312 || 4 || Enough to replace EQ stops for ALL optics? || || Buy screws from McMaster, drill holes for viton, clean&bake, insert viton || || Safety Stop || 20 || D960311 || 4 || Enough to replace EQ stops for ALL optics? || || Buy screws from McMaster, drill holes for viton, clean&bake, insert viton || || || There is no 21 || || || || || || || SST Spring Plunger, 10-32 || 22 || 84985A999 (McMaster Part #) || 5 || 10 || 22 || DONE || || SST SOC HD CAP Screw || 23 || 4-40, 3/8" || 4 || 8 || 10 || DONE || || SST SOC HD CAP Screw || 24 || 4-40, 1/2" || 8 || 16 || 20 || DONE || || SST SOC HD CAP Screw || 25 || 1/4-20, 3/4" || 20 || 40 || 50 || DONE || || SST SOC HD CAP Screw || 26 || 1/4-20, 1.25" || 4 || 8 || 10 || DONE || || SST Lock Washer || 27 || 1/4" || 4 || 8 || 50 || DONE || || SST Washer || 28 || 1/4" || 4 || 8 || 50 || DONE || || Steel Music Wire || 29 || Diam=0.0017", CFW || || || || DONE || || Viton for EQ stops || || || || || || DONE - Clean Plastic Boxes || || Fixtures || || || || || || @ MIT - in Progress (Rana) || |
=== ITMX === || OSEM || S/N || Max out || Max/2 ||<v|6> attachment:ITMY_OSEM.png||Satellite Box #???|| || UL || 284 || 2.09 || 1.045 || || UR || 306 || 1.71 || 0.855 || || LR || 264 || 1.49 || 0.745 || || LL || 219 || 1.56 || 0.780 || || SD || 261 || 1.68 || 0.840 || |
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| == Tip/Tilt Suspensions == For the PRC/SRC folding we will use Tip/Tilt stages modified to be used passively. No active damping, no coil drive. Just magnets and natural eddy current damping. |
=== ITMY === || OSEM || S/N || Max out || Max/2 ||<v|6> attachment:ITMX_OSEM.png||Satellite Box #105|| || UL || 220 || 1.788 || 0.894 || || UR || 289 || 1.656 || 0.828 || || LR || 303 || 1.670 || 0.835 || || LL || 207 || 1.903 || 0.952 || || SD || 277 || 2.002 || 1.001 || |
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| == MC == We will re align the MC suspensions so that we are centered on the mirrors this time. |
=== ETMX === || OSEM || S/N || Max out || Max/2 ||<v|6> ||Satellite Box #???|| || UL || 526 || 1.47 || 0.735 || || UR || 567 || 1.36 || 0.68 || || LR || 513 || 1.60 || 0.80 || || LL || 511 || 1.76 || 0.88 || || SD || 590 || 0.108(?) || - || |
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| == Others == The PRM, SRM, and BS will remain SOS. No new towers. |
=== ETMY === || OSEM || S/N || Max out || Max/2 ||<v|6> ||Satellite Box #???|| || UL || 502 || 1.7 || 0.85 || || UR || 568 || 1.631 || 0.8155 || || LR || 226 || 2.105 || 1.0525 || || LL || 205 || 1.582 || 0.791 || || SD || 552 || 1.490 || 0.745 || |
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| The ETMs will remain MOS. No new towers. | === PRM === || OSEM || S/N || Max out || Max/2 ||<v|6> attachment:PRM_OSEM.png||Satellite Box #???|| || UL || 516 || 1.748 || 0.874 ||Short OSEMs|| || UR || 520 || 1.695 || 0.848 || || LR || 504 || 1.934 || 0.967 || || LL || 511 || 2.076 || 1.038 || || SD || 500 || 9.21 --(1.680)-- || 4.605|| . /!\ '' Valera changed the trans impedance gain of SD OSEM '' [http://nodus.ligo.caltech.edu:8080/40m/3913 ELOG#3913] === SRM === || OSEM || S/N || Max out || Max/2 ||<v|6> attachment:SRM_OSEM.png||Satellite Box #???|| || UL || 522 || 1.744 || 0.872 ||Short OSEMs|| || UR || 513 || 1.773 || 0.887 || || LR || 515 || 1.636 || 0.818 || || LL || 519 || 2.071 || 1.036 || || SD || 502 || 1.758 || 0.879 || === BS === || OSEM || S/N || Max out || Max/2 ||<v|6> ||Satellite Box #???|| || UL || - || 1.50 || 0.75 || || UR || - || 1.57 || 0.785 || || LR || - || 1.57 || 0.785 || || LL || - || 1.38 || 0.69 || || SD || - || 1.57 || 0.785 || === Gluing configuration === attachment:mirror_gluing.png == ►Tip/Tilt Suspensions == [[Compliant Eddy Current Damping in Suspensions]] For the PRC/SRC folding we will use Tip/Tilt stages modified to be used passively. No active damping, no coil drive. Just magnets and natural eddy current damping. We have got five initial TT delivery. 4 is for the PRC/SRC folding. 1 is for tests/spare. We would employ 4 more TTs for the Input/Output steering, though we should seriously consider the foot prints of them. [https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=7074 Bram's TT assembly document on the dcc] [http://ilog.ligo-wa.caltech.edu:7285/advligo/Tip-Tilt_Stage/Tip-Tilt_Mechanical_Design Bram's TT wiki / drawings] We will employ vertical springs designed by Valera@LLO. Mike@LLO suggested the items additionally needed for attaching the vertical springs. || '''Qty.''' || '''DCC No.''' || '''Item''' || || 2 || [https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=2836 D0901164] || Blade Spring || || 2 || [https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=2837 D0901165] || Blade Wire Clamp Block || || 2 || [https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=2838 D0901166] || Blade Wire Clamp || || 1 || [https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=3653 D0901404] || Blade Spring Mounting Platform (Active Tip-Tilt) || || 1 || [https://dcc.ligo.org/cgi-bin/private/DocDB/ShowDocument?docid=3682 D0901409] || Viton Damper Mount || There was a problem of the backplane. A beam of the backplane blocked the laser light goes through the TT optic. attachment:TT_crosssection.png The design has been modified to address this issue. The modified design is here. attachment:TT_ECD_Drawings_for_40m_100215.pdf '''Baking order to Bob: ''' attachment:TTparts_2010-03-11_K_Arai.xls '''Magnets: '''10mm dia. 10mm thick SmCo magnet pressed in the mirror holder. '''Wires: '''<200um musical wire for the mirror suspension / Bram will give us tungsten wires. '''Titanium screws:''' We try grade 3 cheap Ti screws (#2-56 3/8") ~$1.3ea (c.f. McMaster ~$15ea) '''To Do:'''''' '''Wire Jig drawing == ►Other suspensions == We will realign the MC suspensions so that we are centered on the mirrors this time. The PRM, SRM, and BS will remain SOS. No new towers.The ETMs will be replaced to the SOSs later. They exist on the flow bench at the Yend. |
►Suspension records
X/Y are named with the NEW convention.
ITMX
OSEM |
S/N |
Max out |
Max/2 |
attachment:ITMY_OSEM.png |
Satellite Box #??? |
UL |
284 |
2.09 |
1.045 |
||
UR |
306 |
1.71 |
0.855 |
||
LR |
264 |
1.49 |
0.745 |
||
LL |
219 |
1.56 |
0.780 |
||
SD |
261 |
1.68 |
0.840 |
ITMY
OSEM |
S/N |
Max out |
Max/2 |
attachment:ITMX_OSEM.png |
Satellite Box #105 |
UL |
220 |
1.788 |
0.894 |
||
UR |
289 |
1.656 |
0.828 |
||
LR |
303 |
1.670 |
0.835 |
||
LL |
207 |
1.903 |
0.952 |
||
SD |
277 |
2.002 |
1.001 |
ETMX
OSEM |
S/N |
Max out |
Max/2 |
|
Satellite Box #??? |
UL |
526 |
1.47 |
0.735 |
||
UR |
567 |
1.36 |
0.68 |
||
LR |
513 |
1.60 |
0.80 |
||
LL |
511 |
1.76 |
0.88 |
||
SD |
590 |
0.108(?) |
- |
ETMY
OSEM |
S/N |
Max out |
Max/2 |
|
Satellite Box #??? |
UL |
502 |
1.7 |
0.85 |
||
UR |
568 |
1.631 |
0.8155 |
||
LR |
226 |
2.105 |
1.0525 |
||
LL |
205 |
1.582 |
0.791 |
||
SD |
552 |
1.490 |
0.745 |
PRM
OSEM |
S/N |
Max out |
Max/2 |
attachment:PRM_OSEM.png |
Satellite Box #??? |
UL |
516 |
1.748 |
0.874 |
Short OSEMs |
|
UR |
520 |
1.695 |
0.848 |
||
LR |
504 |
1.934 |
0.967 |
||
LL |
511 |
2.076 |
1.038 |
||
SD |
500 |
9.21 1.680 |
4.605 |
 ~$1.3ea (c.f. McMaster ~$15ea)
To Do: Wire Jig drawing
►Other suspensions
We will realign the MC suspensions so that we are centered on the mirrors this time.
The PRM, SRM, and BS will remain SOS. No new towers.The ETMs will be replaced to the SOSs later. They exist on the flow bench at the Yend.