FIELD: aircraft machinery.
SUBSTANCE: for transmitting or receiving antenna of an aircraft in the decimetre wavelength range. Measure temperatures on the inner and outer surfaces, as well as throughout the entire thickness of the structure, by placing sensors in the thickness of the fence, the incoming information from which is sent to the computer data bank, where it is processed and systematized in the form of graphs, with using which, on the cross section of the investigated outer fencing, built on a selected scale and previously divided into layers at the locations of the sensors, a graph of the temperature distribution by layers is plotted, according to the invention, to plot the temperature distribution graph by layers on an arbitrary scale, the wall thickness of the test sample is shown, divided into layers in the places where thermocouples are installed, a vertical temperature scale is drawn parallel to the wall surface, from which the points of the corresponding temperatures taken from the graph obtained from the computer data bank are transferred to the selected layers, the values are calculated maximum in possible elasticity of water vapor E (Pa) according to known temperatures obtained from sensors placed in the thickness of the investigated fence and temperature graphs by layers, then, based on the data obtained, the change in vapor permeability resistance and vapor permeability factor along the thickness of the outer wall fence is determined.
EFFECT: providing the possibility of determining changes in vapor permeability resistance and vapor permeability factor along the thickness of the outer fence when conducting thermophysical studies in natural conditions.
1 cl, 2 dwg
