The article is devoted to the identification, ranking and quantitative analysis of the risks that affect the quality of calibration work in the calibration laboratory. The paper used the brainstorming technique, the Ishikawa chart, and the ranking method for research. The results are represented by the Pareto chart. The ranked list was compiled based on the statistical data of the calibration laboratory. The ranked list was used as assessment criteria of risk.

No abstract

The influence of external factors and uninformative parameters of the input signal on the measurement results was evaluated. The main metrological characteristics of the digital pressure meter IDC-2-Micro are given and the design features of the pressure measurement system are described in its example. The principle of operation of a strain-resistant pressure sensor is considered. As a result of their deformation, the output voltage of the bridge is generated, which is proportional to the measured pressure. External factors that have the maximum impact on the metrological characteristics of the pressure meter were selected and the limits of their values were set. 8 factors were identified: ambient air temperature and the measured medium, changes in operating overpressure, ambient humidity, vibrations, frequency of the supply voltage and fluctuations in its values, the presence of an external electromagnetic field. A plan for a factor experiment to evaluate the influence function has been developed. When studying the influence of various factors, including their pair interactions, on the parameter under study using the random balance method, a type of regression equation is proposed. When studying the influence of various factors, including their paired interactions, on the parameter under study, the method of random balance was used.

For any product production, metrological support is of great importance, at the initial stage of which measuring instruments are selected taking into account their measurement range, error, design, and other parameters. Complete information about measuring instruments is contained in the Federal Information Fund for Ensuring the Measurements Uniformity, but it contains a very large data amount, which makes it difficult to select the necessary information for its application in a particular organization. To store and use information in the field of metrological support, it is proposed to use databases and access as a management system that is part of the Microsoft Office. The system elements are: tables for storing data; database queries; forms for easy data entry, viewing and editing; reports for processing data in the form of a ready-made document; pages for providing access to the database from a web page; modules for automating standard operations and creating new procedures using the Visual Basic programming language. Tables are made up of columns and rows. As a basis for the simplest measuring instruments database, two interrelated tables can be used: “Measuring instruments” and “Technical characteristics”. Further, such a database can be developed by adding other related tables.