jason.oberling@LIGO.ORG - posted 10:13, Thursday 13 March 2014 (10737)
WBSC10 ETMy Final Alignment Numbers
IAS: D. Cook, J. Oberling
SUS: B. Weaver, T. Sadecki
SEI: H. Radkins, J. Warner, M. Robinson, G. Grabeel
Over the last week we have been aligning the ETMy in WBSC10. Now that the last round of SUS transfer functions have cleared the quad suspension of rubbing issues, I'm posting the final alignment numbers.
ETMy
-
Y Axis Position (longitudinal): 3,999,455.7 mm
- Target: 3,999,455.4 mm
- Error: +0.3 mm
- Tolerance: ±3.0 mm
-
X Axis Position (lateral): -199.97 mm
- Target: -200.0 mm
- Error: +0.03 mm
- Tolerance: ±1.0 mm
-
Z Axis Position (vertical): -79.6 mm
- Target: -80.0 mm
- Error: +0.4 mm
- Tolerance: ±1.0 mm
-
Pitch: 665 µrad down
- Target: 639 µrad down
- Error: 26 µrad
- Tolerance: ±50 µrad
-
Yaw: 20 µrad CCW
- Target: 0 µrad
- Error: 20 µrad
- Tolerance: ±50 µrad
ERMy (set parallel with respect to the ETMy AR surface. Error numbers are reported from this desired parallelism)
-
Pitch Error: 860 µrad down
- Tolerance: ±1.47 mrad
- Actual Pitch: 2.86 mrad down [ETMy pitch (665 µrad) + ETMy wedge (1.33 mrad) + ERMy pitch error (860 µrad)]
-
Yaw Error: 340 µrad CW
- Tolerance: ±1.47 mrad
- Actual Yaw: 320 µrad CW
ACB
-
Lateral Error: -0.6 mm
- Tolerance: ±2.0 mm
-
Vertical Error: -0.9 mm
- Tolerance: ±2.0 mm
All IAS equipment has been removed from the spool area and the spool is being installed this morning.