aLIGO HAM-ISI, Test Report, Phase I: Assembly Validation, LHO Unit #6 (HAM5)
- Document #:
- LIGO-E1000323-v3
- Document type:
- E - Engineering documents
Other Versions:
- Abstract:
- HAM-ISI Unit #6 was assembled during June 2012. The testing of this Unit is presented here. It started on June 18th and lasted until July 14th.Tests were performed in accordance with E1000309-V12 procedure.
Particularities:
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- CPS & lockers were set before strong temperature changes caused the blades to sag.
- Full set of production GS13s
- L4Cs and brackets installed Minor issues that don’t imply further work:
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- CPS gap measurement with a jig was waived to avoid scratching targets Minor issues that imply further work:
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- Actuators linearity is within requirement. However the average slope deviation is slightly of specifications on H1. It seems to correlate with the cable+actuator resistance measurements. This observation needs to be confirmed with the final measurements made with the in-field cables.
- The simulation, and implementation, of the damping loops represent a “bonus test” and was not performed because of delays caused by omissions in assembly, instrument failure and strong temperature changes.
- CPS and lockers were set before strong temperature changes caused the blades to sag. They might have to be reset once the ISI is installed in the IFO.
- Files in Document:
- Other Files:
- Topics:
- Keywords:
- HAM-ISI Assembly Validation Testing
- Notes and Changes:
- Corrected a typo on V3 ADE box S/N , page 5.
Added page numbers
- Referenced by:
- LIGO-E1100996: aLIGO HAM-ISI, Phase I Testing Reports