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Entry  Tue May 1 03:12:58 2012, frank, tara, DailyProgress, Acoustics, acoustic enclosure for input beam IMG_0849.jpg
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                   Reply  Wed May 30 23:39:15 2012, frank, tara, DailyProgress, Acoustics, acoustic enclosure for input beam IMG_1300.jpg
                   Reply  Wed May 30 23:39:41 2012, frank, tara, DailyProgress, Acoustics, acoustic enclosure for input beam IMG_1300.jpg
                      Reply  Fri Jun 1 01:00:30 2012, frank, tara, DailyProgress, Acoustics, acoustic enclosure for input beam beat_2012_05_31.pngbeat_2012_05_31_b.png
Message ID: 973     Entry time: Wed May 30 23:39:41 2012     In reply to: 955     Reply to this: 975
Author: frank, tara 
Type: DailyProgress 
Category: Acoustics 
Subject: acoustic enclosure for input beam 

We started installing the new acoustic enclosure box for the beat path. It covers the whole beat setup and the part for power detection. The walls are installed. The lid will be made later.

 

IMG_1300.jpg

The mirror mount in front of new focus 1811 PD has long knobs which extend into the wall, so I replace it with another mount that has no knobs, and the panel can fit without obstruction.

The current box has only three holes, 2 for input beams, one for output beam at the beam splitter. Windows might be installed in these holes for better acoustic enclosure.

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