Geodesy and Mine Surveying ANALYSIS OF POSSIBILITIES TO APPLY LASER SCANNING TECHNOLOGY IN INVESTIGATIONS OF INDUSTRIAL OBJECTS M.Sc. Eng. Rafał Radziejewski M.Sc., Eng. Jakub Markiewicz, Ph.D .Dorota Zawieska 1 Faculty of Geodesy and Cartography, Warsaw University of Technology, Poland ABSTRACT Projection of appearance and geometry of complicated industrial objects is a complex task. which requires that appropriately scheduled and prepared measurements are performed. Such objects must be accurately inventoried, but their complicated shapes often makes the access to such objects and visibility of their entire surface very difficult. Prepared documentation was often developed in the form of sketches, plans or maps, which were additionally amended by photographic documentation. Visualisation of objects in such a form is often insufficient. Due to the increasing number of industrial objects, as well as technological development, the need to modify methods of inventorying has appeared. Designing of new elements with the use of CAD/CAM tools requires that an object is described in three dimensions. Measurements were initially performed with the use of tacheometers, allowing for obtaining spatial co-ordinates of each point. Such technique required the utilisation of a mirror and involvement of the second person. Zones which are excluded from the possibility of visits by humans often exist within the areas of industrial objects. That is why mirror-less tacheometers appeared in the market, which allow for contact free measurements. However, measurements lasted too long and they were not cost effective. Basing on this technology a laser scanner was constructed. It automatically measures millions of points [5] and operates much faster than a tacheometer. The terrestrial laser scanning technology produces a three-dimensional description of geometry of scanned objects. The accuracy of