Abstract: An alignment tool for a pitch link comprises first and second pitch link retainers, wherein the distance between the retainers is adjustable to accommodate the length of the pitch link; and a measurement system for measuring the displacement of a rod end from an adjustment member of the pitch link, comprising first and second measurement reference points fixedly associated with the first and second retainers, respectively. Another alignment tool for a pitch link comprises first and second retainers having an adjustable distance there between; and a stabilization mechanism for stabilizing the tool on a surface. A method for adjusting and aligning a pitch link, in part comprising the steps of securing the pitch link to the alignment tool; measuring and recording a baseline length displacement of the pitch link; loosening the pitch link jam nuts; and adjusting the pitch link on the alignment tool to match the previously recorded displacement.

Abstract: An alignment tool for a pitch link comprises first and second pitch link retainers, wherein the distance between the retainers is adjustable to accommodate the length of the pitch link; and a measurement system for measuring the displacement of a rod end from an adjustment member of the pitch link, comprising first and second measurement reference points fixedly associated with the first and second retainers, respectively. Another alignment tool for a pitch link comprises first and second retainers having an adjustable distance there between; and a stabilization mechanism for stabilizing the tool on a surface. A method for adjusting and aligning a pitch link, in part comprising the steps of securing the pitch link to the alignment tool; measuring and recording a baseline length displacement of the pitch link; loosening the pitch link jam nuts; and adjusting the pitch link on the alignment tool to match the previously recorded displacement.

Abstract: An imaging system generates images of the interior of an object using radiation which is attenuated and scattered by the interior of the object. The object is radiated at a number of points near the exterior of the object, and the radiation emerging from the object is measured at an array of exit points near the exterior of the object. The interior of the object is modelled as an array of volume elements called voxels. Each voxel is modelled as having scattering and attenuation properties, represented by numerical coefficients. The system computes the intensity of radiation that would emerge from the object at the exit points if the interior of the object were characterized by a currently assigned set of values for the scattering and attenuation coefficients. Then, the differences between the measured intensities and the computer intensities are used to compute an error function relates to the magnitude of the errors in the reconstruction.