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Mon Dec 3 19:44:58 2007
Accelerometers on new mounts
I (Andrey) continued today working with new accelerometer mounting. (see entry #151 about my Friday work).
I bought screws/washers and attached those mounts with accelerometers to metallic frames which are firmly cemented to the floor.
One such mount with three accelerometers (in X-, Y-, Z-directions) is installed near the ITMX (in the previous location, but NOT on top of the unused stack as before Friday), the other mount with three accelerometers in three orthogonal directions is installed near ETMX in the east end of the room (this set of accelerometers was installed between MC and BS before Friday). I uncoiled the cables, put them into the cable tray towards the ETMX, and hooked-up the three accelerometers near ETMX in the east end of the room.
Now all six accelerometers are hooked-up (that is, connected to power supply board with cables).
We decided with Steve Vass to put red cones (similar to those that are on highways in the road construction zones) in order to prevent people from bumping into accelerometers. Please use caution when walking along the X-arm.
I took several pictures of the new accelerometer setup. Picture "DSC_0194.JPG" shows the mount with accelerometers near the the ITMX and the beamsplitter chamber,
picture "DSC_0195.JPG" is the "zoomed-in" view of the same accelerometers, while picture "DSC_0196.JPG" shows the mount with accelerometers near ETMX in the east end of the room.
Many thanks to Mr. Steve Vass for his thorough explanation/showing me how to drill the metal and put threads in the holes.