In the article the specificity of the procedure of interpolation using the results of spatial measurements is studied. The task related with carrying out interpolation using weight functions as an inverse functions of distances between measuring instruments and interpolated points is considered. It is shown that upon imposition some limitation condition on sum value of weight functions and distances, and also upon provision the determined dependence between measured values and relevant distances the minimum value of estimated point can be achieved.

The method of construction of non-binary counters. Disclosed counters structure. The reliability of a unitary code is provided with the new dictionary memory transitions of the counter digits.

It is shown that the specificity of quasideterministic and random discrete electrical measurement signals in many subject areas is the finiteness of the measurement interval and the presence in their structure of hidden periodic, almost-periodic and anharmonic signals, which requires in addition to temporary representation form also frequency and time-frequency representation forms. The concept of field of discrete indirect measurements was introduced, characteristic trends in the development of this type of measurement were revealed, their system analysis was given.

The complex of models, methods and algorithms for implementation of system of terminological search in metrological information systems is offered.

The results of the analysis of methods and of measuring instruments of the catalytic activity, which may be useful in the development of standard of this value, are submitted. The analysis showed that with all the variety of methods and of measuring instruments of catalytic activity in during the development of the standard are needed a set of mandatory requirements both the selection of objects (catalysts) and methods and measuring instruments.

The metrological characteristics of ultrasonic gas analyzers of hydrogen in carbon dioxide, acetylene, nitrogen, carbon monooxide, ammonia, methane and helium are analyzed. The analysis is carried out by mathematical modeling. It is shown that the devices designed to determine hydrogen in carbon dioxide, acetylene, nitrogen, carbon monooxide, ammonia and methane can be used for technological control.