Active and passive thermal control system of stratospheric airship radar

Abstract

The invention relates to an active and passive thermal control system of a stratospheric airship radar. The active and passive thermal control system comprises a spherical cover plate, an antenna cover, a servo mechanism, an antenna frame, a power supply, an antenna, a system control box, an electronic equipment bracket, electronic equipment, a radiator, a fan, a temperature sensor and a heating film, wherein the spherical cover plate covers the opening of the antenna cover; the upper part of the servo mechanism penetrates through the spherical cover plate and is mounted at the abdomen of the airship, and the lower part is connected with the antenna frame and the antenna; the power supply, the system control box, the electronic equipment bracket, the electronic equipment, the radiator and the fan are all mounted on the antenna frame; the temperature sensor is arranged around the antenna; the heating film is attached to a preset heating film area; and the system control box controls the fan and the heating film to work according to monitoring data of the temperature sensor. The thermal control system is simple in structure, small in size and light in weight, can rotate along with the antenna, and is particularly suitable for light and small airship radars.

Description

technical field [0001] The invention relates to the technical field of radar, in particular to an active and passive thermal control system of a stratospheric airship radar. Background technique [0002] The atmosphere from the troposphere up to about 50km is called the stratosphere. The temperature of the lower part of the global stratosphere changes slowly with height, and the atmosphere in the stratosphere is very stable, which can ensure the long-term stable operation of the aircraft using the power propulsion and control system. It is very suitable for flying and working with floating slow-speed aircraft. Among them, the airship is a type of aerostat that currently performs fixed-point and long-term work in the stratosphere. [0003] The radar payload of a stratospheric airship is generally placed in the dome, which is suspended from the belly of the airship. The radar load mainly includes antennas and electronic equipment. The radar emits a lot of heat during operati...

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