CLOSED VOLUME PRESSURE CONTROL METHOD Russian patent published in 2019 - IPC G01M5/00 

FIELD: test equipment.

SUBSTANCE: invention relates to the field of test equipment, in particular, to aircraft strength tests. In the process of implementation of the proposed method, air pressure increase in the closed volume, in particular in the fuselage, is ensured by the opening of the high-flow and low-flow valves, and its stabilization on the horizontal sections of the programs is provided with a single low-flow valve only. To achieve this result, plant comprises two two-position valves (inlet and high-flow), low-flow valve, air release valve, program loading control unit, pressure sensors.

EFFECT: technical result consists in increase of loading rate, increase of loading accuracy, possibility of development of various types of loading (trapezoidal, stepped), provision of additional protection levels, simplification of design.

4 cl, 2 dwg