Precise thermal control mechanism of focal plane detector

A detector and thermal control technology, which is applied in the direction of instruments, temperature control, non-electric variable control, etc., can solve the problems that the thermal control mechanism of the focal plane detector cannot meet the temperature, switch rapidly, and cannot meet the work requirements, etc., and achieve the speed of action Fast, precise temperature control, and the effect of reducing pollution

Inactive Publication Date: 2012-09-19
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

[0006] The invention provides a precise thermal control mechanism of a focal plane detector, which solves the technical problem that the existing thermal control mechanism of the focal plane detector cannot meet the rapid temperature conversion under different working modes and cannot meet the working requirements

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  • Precise thermal control mechanism of focal plane detector
  • Precise thermal control mechanism of focal plane detector
  • Precise thermal control mechanism of focal plane detector

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Embodiment Construction

[0037] A focal plane detector precision thermal control mechanism, including a vacuum box 1, a vacuum window glass 2, a cold shield assembly 3 (including a cold shield cover 31, a cold shield bottom plate 32 and a window glass 33), a detector, and a refrigerator substrate 5 , heat pipe assembly 6, heat dissipation plate 7, detector cooler 8, cold screen cooler 9, substrate film heater 10, heat pipe film heater 11, multi-layer insulation material 12, temperature sensor 13, environment boundary 14 where the mechanism is located ,

[0038] The outside of the vacuum box 1 is provided with a heat insulating layer 12, the heat insulating material is a multi-layer heat insulating material or a foam heat insulating material, the vacuum housing 1 is fixedly connected with the refrigerator substrate 6 to form a closed cavity, and the detection assembly and The cooling assembly is set in a closed cavity,

[0039] Vacuumizing is implemented in the airtight cavity; a sealed heat insulatio...

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Abstract

The invention relates to a precise thermal control mechanism of a focal plane detector, and the precise thermal control mechanism comprises a vacuum box body, a refrigerating assembly, a cold screen assembly, a heating assembly and a temperature collecting unit, and the precise thermal control mechanism also comprises a heat insulating layer which is arranged at the outer side of the vacuum box body and the outer side of the heating assembly, the refrigerating assembly comprises a refrigerator substrate, at least one detector refrigerator, at least one cold screen refrigerator, a heat tube assembly and a heat radiation plate. Due to the adoption of the precise thermal control mechanism, the technical problems that the quick variation of the temperature under the same working mode is difficult to realize because the temperature control of the traditional photoelectric detector thermal control mechanism mainly depends on the passive heat radiation way can be solved, a way combining the initiative refrigeration and the initiative heating is adopted, by the reasonable design of a thermal control system structure, not only is the quick variation of the temperature of the detector realized to meet the temperature requirement under different working modes, but also the temperature range can be precisely controlled, and the working reliability of the system is high.

Description

technical field [0001] The invention relates to a precision thermal control mechanism of a focal plane detector, which can be applied not only in the space environment, but also in the ground environment. Background technique [0002] High-performance space cameras or space telescopes have different operating temperature requirements in different working modes and working environments. For example, the focal plane needs to be cooled to a lower temperature (-50°C~-150°C, etc.) during imaging and observation, and in some test modes, the detector needs to work in a normal temperature environment (such as 10°C~40°C, etc.) . [0003] In order to meet the temperature requirements of the focal plane detector in different working modes, it is necessary to realize the fast, high precision and high reliability of the thermal control mechanism switching between different temperature requirements. [0004] The existing traditional photodetector thermal control mechanism mainly relies ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
Inventor 杨文刚王晨洁凤良杰王英豪杜云飞樊学武
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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