Yarm Alignment
For Wave Front Sensing Engaging (Dec/17/2019 Kokeyama)
After the main LSC_LOCK guardian acquires the OBSERVATION mode, open the human_EY screen from Commissioning.Doc.
- Turn on the left top button. It indicates the alignment time.
- Tweak the EY alignment by the green sliders on the human_EY screen.
- - You aim the AS port signals make darker.
- - Open the ndscope from the same screen to check the AS DC darkness.
- - Move EY carefully and slowly!
- Turn off the left top button to go to the real observation mode.
