aLIGO HEPI L1 HAM2 Assembly Validation Report

Document #:

LIGO-E1300923-v1

Document type:

E - Engineering documents

Abstract:

aLIGO HEPI L1 HAM2 Assembly Validation Report

Files in Document:

• E1300923-V1 aLIGO HEPI L1 HAM2 Assembly Validation Rep...pdf (3.5 MB)

Other Files:

• E1300923-V1 aLIGO HEPI L1 HAM2 Assembly Validation Re...docx (7.5 MB)

Topics:

• Seismic Isolation
• Subsystem Test

Authors:

• Celine Ramet

Notes and Changes:

Here is a list of the tests that still need to be done:
- 1.1 Load Cell Assembly: the value will be recorded in this document
- 1.4 Check Stops Gaps: this test will be done when we unlock HEPI on L1 HAM 4
- 1.6 IPS Centering
- 1.9 Static Test Local Drive
- 1.10 Linearity Test and Range of Motion
- 1.14 Alignment Offsets

Some of the tests have been waived:
- 1.2 Bellows: the bellows are hard to access and tests are hard to proceed. After several discussions and brainstorming sessions, it has been decided not to measure the gaps on HEPI-HAM.
- 1.5 Gaps Check: this test can be waived if step 1.10 Linearity Test/Range of motion in the local basis passes because it means that the system has a full range of motion and is, therefore, free to move
- 1.11 Actuator Plate to Shield gap: this test was not performed because the Range of motion gave good results

Related Documents:

• LIGO-E1300824: aLIGO HEPI Assembly Validation Procedure