High precision camera, designed for advanced optical system, with a wide field of vision, high resolution and fast response, has a wild range of applications. As the main payload for spacecraft, the optical remote sensor is mounted exposed to the space, which means it should have a reliable optical performance in harsh space environment during lifetime. Because of the special optical characteristic, imaging path should be accurate, and less thermal deformation for the optical parts is required in the working process, so the high precision camera has a high level requirement for temperature. High resolution space camera is generally required to own the capability of adapting to space thermal environments. The flexible satellite's change of rolling attitude affects the temperature distribution of the camera and makes a difference to optical performance. The thermal control design of space camera is presented, and analysis the temperature data in orbit to prove the thermal design correct. It is proved that the rolling attitude has more influence on outer parts and less influence on inner parts, and active thermal control can weaken the influence of rolling attitude.
Laser communicator equipment, designed for advanced optical communication, with a large capacity communication,
good encryption and lightweight structures, etc., has a wide range of applications. As for the special transmission
characteristic of optical communication, laser phase in the transmission path should be accurate, and less thermal
deformation for the optical parts is required in the working process, so the laser communicator equipment has a high
level requirement for temperature. Large power units cooling, outer two-dimensional rotating units, temperature control
for rotating cable, and high temperature stability and equality, bring a challenge for thermal design. Using structure
–electric-thermo-optical integration technology, active and passive thermal control methods are adopt in thermal design
for laser communicator equipment: heat-conducted plate and heat pipe were adopted for heat transfer of high
heat-flux parts, a new passive and active thermal control method to solve cable cryogenic problems, and high precision
temperature control methods were applied for key parts. In-orbit data were analyzed, and the results prove the thermal
design correct, and bring a way to thermal control for the equipment with high heat flux and running parts.