Changes

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.

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.  The green laser used in the Michelson was reflected off of the two mirrors and into the camera lens.  A linear micro-adjustment translation stage was placed below the camera end.  The camera position was changed by .5mm and a map of flare spot location versus camera displacement was developed.  It was thought originally that the camera lens may distort the flare spot as it moved away from the center, but it was determined that the area of interest is sufficiently linear, and so a simple equation for translation versus movement was developed. 

The following is an image of the device used for the camera calibration:

== Video Analysis ==  

 

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.