Abstract: Provided herein are an optical test platform and corresponding method of manufacturing the same. The test platform may include a shell defining a cavity for receiving a sample tube, a first aperture, and a second aperture. The first aperture and the second aperture of the shell may each be configured to optically couple the cavity with an exterior of the shell. The test platform may further include a first window and a second window embedded in the shell. The first window may seal a first aperture and the second window may seal a second aperture. The first window and second window may each permit the optical coupling of the cavity with the exterior of the shell. The first window and the second window may be optically coupled via the cavity, and the shell may prohibit optical coupling between the first window and the second window through the shell.

Abstract: A photogrammetry system includes a photogrammetry rig and a plurality of cameras. The photogrammetry rig includes a support frame and a plurality of support arms. The support frame includes a plurality of joint members and a plurality of struts each extending between two of the plurality of joint members to collectively form a spherical polyhedron shape having a center focal point. Each of the plurality of support arms extends through a different one of the plurality of joint members in a direction following a different radial ray from the center focal point. Each of the plurality of support arms is selectively, linearly slidable and securable relative to the different one of the joint members along the different radial ray between a position closest to the center focal point and a different position farthest away from the center focal point.

Abstract: A photogrammetry system includes a photogrammetry rig and a plurality of cameras. The photogrammetry rig includes a support frame and a plurality of support arms. The support frame includes a plurality of joint members and a plurality of struts each extending between two of the plurality of joint members to collectively form a spherical polyhedron shape having a center focal point. Each of the plurality of support arms extends through a different one of the plurality of joint members in a direction following a different radial ray from the center focal point. Each of the plurality of support arms is selectively, linearly slidable and securable relative to the different one of the joint members along the different radial ray between a position closest to the center focal point and a different position farthest away from the center focal point.

Abstract: A mechanism for the parallel connection of infinitely-adjustable looping gearings having planetary and/or differential gearings interconnected with the displaceable pulley halves and control threads that automatically adjust running differences between the different V-belt pulleys as well as providing a means for simultaneously changing the transmission ratio of several coaxially-mounted V-belt pulleys.