Industry has used LADAR systems, which create three-dimensional images of areas and objects, since the late 1970s. Recent advances in microchip lasers, optics, microelectromechanical systems (MEMS) and computers, however, have increased LADAR's speed of data acquisition, range accuracy and reliability, as well as reduced its size and costs. LADARs now are used to generate topographic images, to survey the depths of large bodies of water, and as three-dimensional documentation of construction when building plans are not available. Manufacturers also are beginning to use LADARs as a tool to recreate critical machine components from single examples.
NIST is testing LADAR as a tool for remote management of construction sites and for navigating unoccupied military vehicles. (The latter research could soon lead to collision-avoidance advances for civilian automobiles.) To spur greater LADAR industrial use, NIST also is working to develop test objects for LADAR performance standards so industry can have confidence in laser scanning readings and comparison of systems. Other LADAR research currently under way at NIST includes work on rapid, long-range automated identification systems for remote scanning and inventory of construction materials; automated LADAR-based docking systems for building construction cranes; and basic scientific and engineering research that will enable development of miniature, high-resolution, low-cost, next-generation LADAR systems.
*Performance Analysis of Next-Generation LADAR for Manufacturing, Construction and Mobility, NISTIR 7117, William C. Stone, Building and Fire Research Laboratory; Maris Juberts, Nick Dagalakis, Jack Stone, Jason Gorman, Manufacturing Engineering Laboratory. See www.bfrl.nist.gov/bfrlnews/NISTIR_7117_Final_Complete.pdf .