METHODS OF EXPERIMENTAL RESEARCH OF MEASUREMENT OF MASS FEED FLOW

Abstract

The article presents an overview and analysis of feed mass flow meters, scheme of measurement system and general view of feed flow meter, provides for measuring, recording and transmitting information by electrical signals of running values ​​of feed flow weight in dynamic mode, display and storage of information and control measuring instruments.

The experimental setup and methods of experimental research of feed flow mass meter using the theory of multifactor planned experiment are given, the levels of factor variation, the matrix of the experimental plan, the regression equation to determine the output voltage of the feed flow mass meter from the change in bending moment of the strain gauge.

The proposed method of experimental studies of feed flow mass meter using the theory of the planned experiment allows to establish the optimal values ​​of the studied factors (cross-sectional area and length of strain gauge plane and bending moment of strain gauge plane), increase the reliability of results.

The main advantages of the proposed method in comparison with the existing ones are simultaneous processing of research results and display on a PC monitor or creation of hard copies of random process implementations in volts (B). Due to the high speed of the applied analog-to-digital converter, if necessary, it is possible to ensure such discretization of the continuous random dosing process by the dispenser, which allows to obtain up to 100 values ​​or more per second and, as a result, highly informative research.