FIELD: cosmic equipment for research of the degree and nature of space pollution by technogeneous and micrometeoroid particles. SUBSTANCE: cosmic-dust detector uses an ion sensor and a target in the form of two concentric shells of metal-dielectric-metal film of spherical shape, vessel with gas, particle physical parameters measuring unit, in addition it comprises a particle element composition measuring unit, switches of capacitor sensors, ferro-probe sensors, detector stabilizing unit, film elements of photoelectric transducers, thermocouple and ionization pressure transducers, filaments, film burning-through circuit, the output of the ion sensor amplifier is connected to the particle element composition measuring unit, the capacitor sensors are connected to the switch and particle physical parameters measuring unit, installed in the center of the detector internal sphere are the ferro-probe sensors, metal films connected to the detector stabilizing unit are applied onto the surfaces of three gas-filled welds, the film elements of the photoelectric transducers and antennas of the radiotelemetry system are installed on part of the surface of the external sphere, two gas-filled welds are made on the outer surface of the internal sphere, the thermocouple and ionization pressure transducers connected to the pressure measuring unit are installed on the inner surface of the external sphere, the switch of the capacitor sensors is connected to the external sphere sphericity monitoring unit, the outputs of the ferro-probe sensors are connected to the detector stabilizing unit, installed on the inner surface of the external and internal spheres are the filaments connected to the film burning-through circuit. EFFECT: enhanced detector information capacity, mass sensitivity, accuracy of determining velocity vector, particle mass, reliability of detector functioning. 2 cl, 8 dwg
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