the nondestructive techniques are applied to identify important data from the internal process of distillation towers, process towers, pressure vessels and etc. in recent, the gamma-ray scanning techniques as diagnostic tools for scanning of tray columns, packed columns, storage tanks, level measurement and density measurement of containing materials has been used widely. this paper has tried t...

Abstract: One of basic principle of any organization is to assure about obtained figures from measuring products. If the measured data was not trusted, will be lead to a wrong decisions regarding the approval or rejection of products and obviously the cost would be great. First cases in measurement systems analysis which crossing minds are criteria for approval or rejection any mea...

Measurement technology has made an enormous progress in the last decade. With advent of knowledge representation, various object-oriented models for measurement systems have been developed past. Most common limitations all these were not incorporating uncertainty process. In this paper, we proposed model depicting information and flow process, including uncertainty. The three major object class...