Precision temperature control device for X-ray pulsar navigation sensor

Abstract

The invention discloses a precision temperature control device for an X-ray pulsar navigation sensor; the precision temperature control device comprises a heat isolation pad, an outboard temperature control loop, a front wheel disc, a first heat isolation assembly, a second heat isolation assembly, a temperature sensor, a detector, a heat isolation gasket, a detector mount, a cabin temperature control loop, a heat conductive copper block and a heat conductive copper belt; the heat isolation pad, the outboard temperature control loop and the front wheel disc are connected in sequence; the first heat isolation assembly is arranged on an optics lens; the temperature sensor is wrapped on an optical bench by the second heat isolation assembly; a preamplifier assembly is provided with the detector mount and the heat isolation gasket; the detector, the cabin temperature control loop, the heat conductive copper block and the heat conductive copper belt are connected in order; the precision temperature control device can fully consider light, machine, electric, heat and space track environment conditions, and can respectively use different temperature control means for different assemblies, thus adapting to different heat environments, effectively ensuring normal works of each assembly, realizing integral temperature control optimization of the device, and solving the problems that a conventional satellite platform temperature homogeneity is poor.

Description

technical field [0001] The invention relates to a precise temperature control device for an X-ray pulsar navigation sensor, belonging to the technical field of navigation control. Background technique [0002] The X-ray pulsar navigation sensor is a new type of navigation sensor with a focal length of up to 1200mm. The optical lens is exposed in space and must have reliable optical performance in the harsh space environment. The optical bench and pre-amplifier components are located in the satellite cabin , the detector of the front assembly must work normally under the complex thermal environment in the cabin. The field of view of the X-ray pulsar navigation sensor is only 15arcmin, the focal length is 1200mm, the optical axis of the optical lens is tilted 1arcmin, the radial displacement error of the light spot at the detector device is 0.34mm, and the radius of the sensitive surface of the detector device is 2.53mm. It can be seen from the simulation that when the X-ray ...

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is: to overcome the deficiencies of the prior art, the present invention provides a precision temperature control device for X-ray pulsar navigation sensors, by comprehensively considering the light, machine, electricity, heat and space orbit environment conditions, adopt different temperature control measures for different components, adapt to different thermal environments, effectively ensure the normal operation of each component, realize the optimization of the overall temperature control of the device, and solve the problem of poor temperature uniformity of traditional satellite platforms; by adopting Passive temperature control measures such as heat insulation, thermal control coating, heat conduction, and heat dissipation surface, as well as active temperature control measures such as electric heaters and semiconductor refrigerators, combined with the design of thermal combination of optical lens and front assembly, improve the overall thermal efficiency of the device. Stability, which makes up for the defect of low temperature control indicators of traditional satellite platforms; through precise setting of temperature control components, the reliability of X-ray pulsar navigation sensors is enhanced, thermal background noise is reduced, and navigation accuracy is improved. Overcomes the problem of susceptibility to interference of traditional X-ray pulsar navigation sensors

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