LIGO Document E1400157-x0

3rd IFO SUS BS Acceptance Document

Document #:
LIGO-E1400157-x0
Document type:
E - Engineering documents
Abstract:
3rd IFO SUS BS Acceptance Document TBD .

PUNCH LIST - 1) Transfer function data noisy. This is due to result performed on free standing stand. Accepted but noted. No Action.

SIGNED - Calum Torrie signature on 2nd April 2014 closes this Acceptance Doc on behalf of chair and committee .

Punchlist items and their resolution will be tracked in T1400181. They will not be updated on this Acceptance Document filecard.

Files in Document:
None
Topics:
Notes and Changes:
I. Committee (* indicates review chair)
Rich Abbott, Alastair Heptonstall, Calum Torrie*, Jeff Lewis, Fabrice Matichard, Celine Ramet.

II. Documents for Review (against list from M1100282)
Top Assembly Name:
DOES NOT EXIST YET AdvLIGO SUS BSC2-I1, XYZ Local CS for BS HR assembly
QUESTION TO REVIEWERS - Will systems be creating layouts for I1? Or do we "accept" it without it?
ACCEPT WITHOUT. CIT. SYSTEMS WILL NOT BE CREATING I1 LAYOUT AT THIS POINT.

ICS Assembly #:
- ICS Assembly Load: https://ics-redux.ligo-la.caltech.edu/JIRA/browse/ASSY-D1000392-002
DONE. CLOSED.

Acceptance document:
This filecard serves as the acceptance document for 3rd IFO BS.
For common material for all BSFM suspensions, see
https://dcc.ligo.org/LIGO-E1201039

ICS inventory
ACTION - All to "find" an item and comment on success and structure
ACCEPTED. CIT.

S-numbers
Electronics for I1 have been inventoried, but Rack Layouts and/or individual S numbers have not yet been assigned to specific HSTSs.
QUESTION TO REVIEWERS - Is this OK? Should we dig up chassis test reports performed by CDS? I think chassis are being stored in Racks in the H2 Electronics Room; seems like we could treat them as though that was their "installed" location, and treat the inventory as LLO has with a DCC tree structure.
ACCEPT WITHOUT. CIT.

Test results:
- Calibrated, M1toM1 Transfer Functions (DAMPING OFF):
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=4312

- Calibrated, M1toM1 Transfer Functions (DAMPING ON):
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=4312

- Calibrated, M2toM2 Transfer Functions (DAMPING OFF):
DOES NOT EXIST YET (Not a part of Phase 1 Testing)

- Calibrated, M2toM2 Transfer Functions (DAMPING ON):
DOES NOT EXIST YET (Not a part of Phase 1 Testing)

- Calibrated OSEM Sensor ASDs, All Stages (DAMPING OFF):
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=4312

- Calibrated OSEM Sensor ASDs, All Stages (DAMPING ON):
https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=4312

- B&K Hammer Cage Resonance Transfer Functions:
DOES NOT EXIST YET (Not a part of Phase 1 Testing)

- Coil Driver Noise: https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=4751
- Coil Driver Response in all states: https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=4495
Noise measurements presented are for MC2, however, the Beamsplitter uses the same coil drivers and we would therefore expect identical performance.

- Violin Mode Frequencies and Q
Not required for fabrication acceptance. However, SUS will be doing 1 of each of each type when time permits.
- Violin mode frequency measured: https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=9282
- Violin mode model prediction available: see T1300876

Channel/Signal List and Calibrations
For latest measurements of OSEM Sensor's Open Light Current, See https://dcc.ligo.org/LIGO-E1200343
Otherwise calibrations are assumed to be as shown in BSFM Control Design Description,
https://dcc.ligo.org/LIGO-T1100479
with a roughly 20% uncertainty (determined by the worst discrepancy seen between modelled and measured transfer functions across all DOFs and many BSFMs).

III. General notes and action items:
- The review team should review E1201039 in detail - unless the SUS Acceptance format changes and E1201039 is no longer the preferred method of presenting this info. TBD.

Referenced by:

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