The invention discloses a navigation sensor heat balance test device used in a complex thermal environment. The device comprises a thermal environment simulation mounting bottom plate, a thermal environment simulation test outer cover, a navigation sensor and a light shield. The thermal environment required by work of a navigation sensor is simulated by the thermal environment simulation mountingbottom plate provided with a heating loop and the thermal environment simulation test outer cover; and an external heat flow is simulated through the light shield, a temperature boundary simulation method and an external heat flow simulation method are combined to achieve a heat balance test of the navigation sensor in a special installation mode of a Mars surrounding device, and the device is stable in overall structure, clear in test process, low in equipment cost and good in simulation effect.

Navigation sensor heat balance test device used in complex thermal environment

The invention relates to a temperature-stabilized star sensor thermal design method and particularly relates to a star sensor thermal design method with the temperature highly stable, which belongs tothe technical field of spacecraft attitude control. According to the star sensor thermal design method with the temperature highly stable, high temperature stability of the star sensor body is realized, and in both a sunshine area and a shadow area, the star sensor body temperature is in a temperature range of 19 DEG C to 21 DEG C. Temperature decoupling between a star sensor baffle assembly anda star sensor body structure is realized, a temperature difference of about 30 DEG C between the front section and the rear section of the baffle is realized, a temperature difference of at least about 15 DEG C between the rear section of the baffle assembly and the star sensor body structure is also realized, and the temperature effects of the star sensor baffle assembly on the star sensor body are greatly reduced.

Temperature-stabilized star sensor thermal design method

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Temperature-stabilized star sensor thermal design method