jason.oberling@LIGO.ORG - posted 14:57, Thursday 02 February 2012 (2137)
ETMy Test Stand Alignment
J. Oberling, D. Cook
We took initial measurements of the ETMy position on the test stand at End Y this morning. All positions are reported with respect to End Y local cardinal directions and all yaw angle directions are reported using a top-down view of the ETMy.
-
Pitch: ~1.06 mrad down
- Desired pitch: 639 µrad down
- Outside ±100 µrad test stand spec
-
Yaw: ~365 µrad CW
- Desired yaw: 0 µrad
- Outside ±100 µrad test stand spec
-
Longitudinal: 4mm West
- Outside ±3mm test stand spec
-
Horzontal: 0.86mm North
- Within ±1mm test stand spec, but may be adjusted closer to the desired position
-
Vertical: 0.2mm high
- Within ±1mm test stand spec
ETMy alignment will commence as soon as SUS personnel are available to make the required moves of the quad structure (currently working on closing out BSC08).