QUAD Testing Outline, Phase 2BFiber Lower “half” Build-up and

TestingM. Barton, B. Bland, D. Cook, J. Kissel, N.

Robertson, J. Romie, T. Sadecki, for the SUS team

G1100769-v2

Jargon

• Lower “half” / Upper “half”• “Metal” or “Wire” hang vs. “Glass” or “Fiber” hang • Fiducials / References• Parallelism / Differential Pitch• PUM and TST, RPUM and RMCP

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Install Glass RMCP

Lace ESD Cables

up Chain

Re-test,

(as needed)

RemoveFirst Contact

from Surface 1

Func

tionali

tyTe

st RH

Install Ring Heater

Weld & Anneal Fibers

Install Glass TST

Order of Operations

Full Metal QUADon BSC

ISI

Metal Triple HangBoth

Chains

Remove Metal PUM and

TST Mass

Separate Chains

TEST MASS CHAIN

REACTION MASS CHAIN

Install Glass PUM

Suspend PUM

Only, Perfom DC

Prism Checks

DC Alig

nment

Checks

Suspend TST Only,

Single Pendulum Full

Characterization

Re-anneal Fibers(as needed)

Install Fiber Guard,

Central Fin

Remove Metal RMCP

Mass

Suspend RMCP,

DC Prism Checks

Func

tiona

lity

Test

ESD,

UIM

,

PUM

AOSE

MS

RemoveFirst Contact

from Surface 2

Marry two chains

On to Phase 2C

Re-Install to full QUAD on BSC ISI

DC Alignment

Checks

DC Alignment

Rubbing Checks

G1100769-v2 3

• Install IAS Retro-reflector on Cage• Gather fiducials of metal hang on

BSC-ISI– Height between PUM and TST– Yaw of PUM and TST

Full Metal QUAD on BSC-ISI

G1100769-v2 4

G1100769-v2 5

Detach Lower “Half,” move to Triple Hang Tooling

• Lock Down Both Chains • Prepare LSAT• Detach lower half cabling fom reaction chain

G1100769-v2 6

Separate Chains

• Move separated chains from LSAT to leveled granite / optical table

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TEST MASS CHAINRemove Metal PUM and TST

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TEST MASS CHAINInstall and Test Ring Heater

• Test ring heater functionality

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TEST MASS CHAINInstall Glass PUM

• DC Alignment checks

G1100769-v2 10

TEST MASS CHAINSuspend PUM, Check DC Alignment

• With UIM to PUM Blades EQ stopped, free up PUM• Check prism functionality• Compare DC alignment to metal references• Redo loops, as necessary

• Re-lock PUM

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TEST MASS CHAINInstall Glass Test Mass

G1100769-v2 12

TEST MASS CHAINWeld and Anneal Fibers

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TEST MASS CHAINFull Fiber Single Pendulum Characterization

• With PUM still on line stops, Unlock TST• Check DC Alignment, compare against metal references• Check PUM / TST Surface 1 parallelism / differential pitch• Measure Pitch and Yaw modes w/ spectra of optical lever• Measure Vertical and Violin Modes with shadow sensor

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TEST MASS CHAINInstall Fiber Gaurds

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REACTION MASS CHAINRemove Metal RMCP

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REACTION MASS CHAINInstall Glass RMCP

• Check ESD functionality / electrical properties up to cable break off before installing

• Continuity • Capacitance

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REACTION MASS CHAINSuspend RMCP, Check DC Alignment

• Check DC alignment against references• Check prism functionality• Redo loops if necessary

G1100769-v2 18

REACTION MASS CHAINLace Up RMCP Cables

• Check ESD functionality / electrical properties at RMCP Break off (again)• Lace cables up through remainder of the reaction chain• Check ESD functionality / electrical properties at top the chain

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Marry Chains• Remove First Contact from Test Mass’ Surface 2 (AR Coating), and RMCP Surface 1 (AR / Gold Coating)

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Reinstall to full QUAD on BSC ISI

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DC Alignment, Rubbing Checks of Both Chains