Ideal Order/Contents of aLIGO QUAD Testing / Commissioning

Document #:

LIGO-G1100693-v5

Document type:

G - Presentations (eg Graphics)

Abstract:

This presentation outlines the testing/commissioning regime for a QUAD throughout its lifetime, from first build up as in metal configuration to post-acceptance commissioning goals.

Files in Document:

• SUSQUAD_TestingPlan-v5.pdf (789.2 kB)

Other Files:

• SUSQUAD_TestingPlan-v5.ppt (872.5 kB)

Topics:

• Installation
• Requirements
• Suspensions
• System Test
• Commissioning
• Assembly
• Integration
• Subsystem Test

Authors:

• Jeffrey Kissel

Keywords:

QUAD SUS aLIGO Testing Results Plan

Notes and Changes:

Major update to tests and results based on ~1 year of experience with taking suspensions from assembly to installation. Highlights of changes include:
- Inclusion of M0, R0, L1 and L2 spectra results for all stages of testing
- Inclusion of M1 damped vs. undamped transfer functions for all stages of testing
- Clarification of comparison measurements for above mentioned results
- Inclusion/clarification of vibration absorber tests and results
- Removal of obsolete / impossible / impractical tests based on experience
- Added reference to OSEM chart (E1200343), which captures open light current values among other useful data.

To Be Changed:-

Recommend adding a coil continuity check for lower stages of suspensions to definitively diagnose if we see the expected DC coil resistance or measure an open-circuit. Such a measurement would only be necessary for Phase 3, and would not impact already stored 3rd IFO suspensions.

Related Documents:

Referenced by:

• LIGO-G1100769-v2: QUAD Testing Outline, Phase 2B
• LIGO-E1200902: aLIGO BSC Test Procedures (associated with install)
• LIGO-G1200070-v2: Ideal Order/Contents of aLIGO Triple SUS Testing / Commissioning
• LIGO-E1000495: aLIGO SUS QUAD Testing and Commissioning Documentation