RU2280229C2 - Wideband radioabsorbing masking coating and method for its production - Google Patents

Abstract

FIELD: masking, in particular, radioabsorbing masking coatings.

SUBSTANCE: the wideband radioabsorbing coating represents two modules connected in perimeter, coated with enamel, made of a netted base of dielectric threads with a filling material interweaved in it. The filling material is made of complex threads of various resistance including glass threads wound around with microwire produced on the basis of iron with addition of cobalt, 3μm in diameter, for one module and 5μm for the other module, the obtained composition is fastened by winding around with glass thread with a minimum spacing. The filling material of one module is made with a resistance of 300 kOhm/m, and that of the other one - 60 kOhm/m.

EFFECT: reduced probability of detection of high-contrast objects by the devices of optical and radar reconnaissance.

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Description

The invention relates to the field of camouflage, in particular to radar absorbing camouflage coatings.

Camouflage coatings are known that are used when hiding ground objects from optical and radar reconnaissance equipment (see German Patents in Class F 41 H 3/00 No. 300947 for 1986, No. 289186 for 1976). In these coatings, elements that have an internal electrically conductive layer in the form of metal, carbon fillers, etc. are attached to the network base.

A camouflage coating is also known, having a base in the form of a network made of dielectric filaments with individual elements of an electrically conductive material of a protective color painted woven into it (see the patent of the Russian Federation for class F 41 H 3/00 No. 2171442 for 2001 - prototype).

The disadvantages of this camouflage coating is that it does not provide the necessary level of reduction in the maximum value of the reflected signal power in the range λ = 0.2 ... 30 cm, as well as the permissible probability of detecting high-contrast objects by means of optical and radar reconnaissance.

The technical result consists in lowering the level of the maximum value of the reflected signal power from high-contrast objects masked by a broadband radio-absorbing masking coating to the required ones and thereby the probability of detecting high-contrast objects by means of optical and radar reconnaissance will be reduced.

To achieve a technical result, the broadband radar absorbing camouflage coating should contain a network base of dielectric filaments with filler material woven into it, while the coating should be two modules connected along the perimeter, and the filler material should be made of complex filaments of various resistances, including glass fibers entwined with a microwire made based on iron with the addition of cobalt with a diameter of 3 μm for one module and 5 μm for another module, the resulting comp The position is fixed by wrapping with glass fiber with a minimum step, in addition, the filling material of one module is made with a resistance of 300 kOhm / m, and the other is 60 KOhm / m and both modules are coated with enamel.

As a result of this technical solution, the coating will have magnetic and dielectric losses due to the fact that the filling material is made of multifilament yarns, including glass fibers, entwined with a microwire (having magnetic losses), made on the basis of iron with the addition of cobalt, and the resulting composition is fixed by entwining with glass fiber with a minimum step, which will reduce the level of the maximum value of the power of the reflected signal from masked high-contrast objects to the required level s. To expand the coverage range of the coating is achieved through the use of coating in the form of two modules connected along the perimeter, while one module is made with a resistance of 300 kOhm / m, and the other 60 kOhm / m due to the fact that for the manufacture of one module a microwire with a diameter of 3 μm is used, and another 5 microns, while one module will work in the short-wavelength, the other in the long-wavelength region of the spectrum, thereby expanding the range of the entire coating. For the effective operation of the coating in the optical range and to improve the physical and mechanical characteristics, both modules are painted with enamel.

The invention is illustrated by drawings, which depict:

In Fig.1 broadband radar absorbing camouflage coating, Fig.2 - coating modules, General view, Fig.3 - cutout A in Fig.2.

The coating consists of two modules 1 fastened around the perimeter, containing a network base 2 made of dielectric filaments, into which filling material 3 is made, made of a complex filament 4 of different resistance, consisting of glass fiber 5, entwined with a microwire 6 with a diameter of 3 μm for one module and 5 microns for another on the basis of iron with the addition of cobalt, while the resulting composition is fixed by wrapping glass with a minimum step of 7.

Broadband radar absorbing camouflage coating can increase the masking efficiency of high-contrast objects, provide the required level of reflected signal power reduction in the range λ = 0.2 ... 30 cm, thereby reducing the likelihood of detection of high-contrast objects by means of optical and radar reconnaissance.

The invention can be used independently or using wireframe elements as a floor mask to reduce the visibility of high-contrast objects.

Claims (6)

1. Broadband radar absorbing camouflage coating containing a network base of dielectric filaments, with a filling material interwoven into it, characterized in that the coating consists of two modules connected around the perimeter, and the filling material is made of multifilament filaments of various resistances, including glass fibers entwined with a microwire, made on the basis of iron with the addition of cobalt, with a diameter of 3 μm for one module and 5 μm for another module, while the resulting composition is fixed by twisting with eklonityu with a minimum step. 2. The coating according to claim 1, characterized in that both modules are coated with enamel. 3. The coating according to claim 1, characterized in that the filling material of one module is made with a resistance of 300 kOhm / m, and the other 60 kOhm / m. 4. A method of manufacturing a broadband radar absorbing camouflage coating, comprising forming a filling material and weaving it into a network base of dielectric filaments, characterized in that the coating is made in the form of two modules connected along the perimeter, and the filling material is made of complex filaments of different resistance, which include glass fiber itself, entwined with a microwire based on iron with the addition of cobalt, with a diameter of 3 μm for one module and 5 μm for another module, with The resulting composition is fixed by wrapping with glass fiber with a minimum step. 5. The method according to claim 4, characterized in that both modules are coated with enamel. 6. The method according to claim 4, characterized in that the filling material of one module is performed with a resistance of 300 kOhm / m, and the other 60 kOhm / m.

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