MEASUREMENT TRUSTWORTHIINESS AND NEW TECHNOLOGIES

The analysis of tendencies related to provision of measurement trustworthiness has made it possible to propose a methodology for automatic checking metrological health of measuring instruments and multichannel measuring systems in the course of their operation. This methodology is called «metrological selfcheck ». The selfcheck enables calibration/verification intervals to be significantly increased. In case of virtual test and artificial intelligent application, automation of the trustworthiness provision becomes possible for traditional measurements. It has been shown that the problem of trustworthiness related to soft measurements taking into consideration the growing interest in them, also becomes actual.

Improving reliability of power plant equipment due to measurement information redundancy

Significant features of using the equipment installed at nuclear, hydraulic and thermal power plants are a multiyear cycle of continuous operation with minimum maintenance works and very high costs necessary to eliminate the consequences of possible crashes. Automatic checking of the state of the most important equipment units can become the optimal decision. In Russia, methods of building intelligent sensors and methods of intellectualization of multichannel measuring systems have been developed. Intellectualization of a measuring system enables to increase the reliability of equipment operation significantly. Examples are given.

Separation of Gases by Membranes: The Effects of Pollutants on the Stability of Membranes

The long-term stability of membranes is determined mainly by their sensitivity to pollutants. Their stability was tested using a novel, multichannel measuring system, which is based on pressure differences. This measuring system is suitable to determine the changes in permeability of polymer membranes. The damaging effects of H2S, BTX and n-dodecane were investigated in terms of polyimide gas separation membranes using nitrogen gas.