NIST Center for Neutron Research is in the process of expanding the number of beamlines for research purposes from 7 to 11 beams. The metrology tasks required to perform the installation of the new beamlines include the design and installation of a high accuracy control network throughout the area impacted by the new beamlines, the measurement and fiducialization of a 145 new glass guide segments, the alignment of each glass guide segment in its vacuum vessel and the positioning of the all the vacuum vessels within three distinct areas of the facility.
Calibration of laser trackers using precision rails and a reference interferometer (one with no angular encoders) is the most precise way of evaluating linear performance, yet only a handful of institutions and companies use such equipment. In addition, little research has been conducted examining the added benefits and capabilities of precision rails when evaluating the linear performance of laser trackers.1 A wide array of calibration procedures exist, many of which do an adequate job of testing tracker performance.
Applications for large volume laser scanning projects are growing each and every day. The ability to capture large amounts of spatial data of the surrounding territory is quickly becoming a standard project deliverable across a variety of industries. Between the affordability of the equipment, the relatively fast learning curve, and straight-forward post-processing software; companies are recognizing and capitalizing on this exciting technology.