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During the development of the Michelson interferometer, it was determined that the natural resonance amplitude was simply too great to perform interferometry.  A direct imaging approach was suggested as a way to determine the vibration amplitude for the very high vibrations at the low wire tension originally used for mounting.  This technique involves using the interferometry set up with the reference mirror and beam expander removed.  The laser is passed directly through the beam splitter cube, with one half beam illuminating the diamond and the other removed.  That illuminated spop is tne passed back through the cube and into our high speed camera.  This beam creates two spots on our image.  One is the point to point focus spot.  The other is an artifact known as a [http://en.wikipedia.org/wiki/Lens_flare lens flare].  Typically lens flares are undesirable, but in our case, the lens flare movement directly correlated to the angular movement of the reflected beam spot on from lens surface.  By careful calibration, the pixel movement on the image versus the angular displacement of the diamond surface was determined.  
 
During the development of the Michelson interferometer, it was determined that the natural resonance amplitude was simply too great to perform interferometry.  A direct imaging approach was suggested as a way to determine the vibration amplitude for the very high vibrations at the low wire tension originally used for mounting.  This technique involves using the interferometry set up with the reference mirror and beam expander removed.  The laser is passed directly through the beam splitter cube, with one half beam illuminating the diamond and the other removed.  That illuminated spop is tne passed back through the cube and into our high speed camera.  This beam creates two spots on our image.  One is the point to point focus spot.  The other is an artifact known as a [http://en.wikipedia.org/wiki/Lens_flare lens flare].  Typically lens flares are undesirable, but in our case, the lens flare movement directly correlated to the angular movement of the reflected beam spot on from lens surface.  By careful calibration, the pixel movement on the image versus the angular displacement of the diamond surface was determined.  
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== Video Analysis ==
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== Equipment ==
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=== Calibration Set-Up ===
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=== Diamond Mount ===
The following is an image of the device used for the camera calibration:
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IMAGE OF CALIBRATION DEVICE
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The following is the initial design of the mount which will be used in the GlueX experiment
 
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[[Image:Diamond mount.jpg|center|Device used for mounting the diamond wafer]]
This calibration device was used to determine the change in pixel location of the center of the lens flares based on angular displacement.  To do this, the camera was mounted horizontally on a 1.40m long bar.  The camera end was free to rotate about a pivot located at the opposite end of the rod, above which a mirror was mountedA linear micro-adjustment translation stage was placed below the camera end.
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We currently have two of these mounts produced and are using one of them in the vibrational analysis.  The split bottom bracket allows us to tension and secure each fiber bundle separately.   
    
=== Tensioning device ===
 
=== Tensioning device ===
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The carriage has several weight plates which are attached to the center hub by a washer attached to the bottom. The device allows us to apply different tensions by changing the number of weighting plates used. The wires are tensioned individually to avoid the potential issue of tensioning them unevenly, thus changing the resonance characteristics.  Each plate weighs 5.56g, allowing us the freedom to apply up to 33g of weight to each fiber bundle.
 
The carriage has several weight plates which are attached to the center hub by a washer attached to the bottom. The device allows us to apply different tensions by changing the number of weighting plates used. The wires are tensioned individually to avoid the potential issue of tensioning them unevenly, thus changing the resonance characteristics.  Each plate weighs 5.56g, allowing us the freedom to apply up to 33g of weight to each fiber bundle.
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== Video Analysis == 
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=== Calibration Set-Up ===
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The following is an image of the device used for the camera calibration:
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IMAGE OF CALIBRATION DEVICE
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This calibration device was used to determine the change in pixel location of the center of the lens flares based on angular displacement.  To do this, the camera was mounted horizontally on a 1.40m long bar.  The camera end was free to rotate about a pivot located at the opposite end of the rod, above which a mirror was mounted.  A linear micro-adjustment translation stage was placed below the camera end.
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=== Image Analysis ===  
 
=== Image Analysis ===  
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