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VIS (PR3)
fabian.arellano - 12:06 Friday 05 February 2021 (15941) Print this report
Comment to Gluing the mirror wire. (15844)

The pitch of the mirror changed when we glued the mirror and the relative change was measured with the oplev.

Height of the oplev beam on ruler:

  • Before locking: 81 mm (klog15852).
  • After releasing: 87.5 mm (klog15885).
  • Distance between the mirror and the oplev ruler: 1713 mm (klog15852).

Therefore, the relative change in pitch is +3.8 mrad approximately, which is a lot. The value of pitch with respect to the horizontal still has to be measured.

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