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Nano-satellite spacing heat sink simulator

A technology of simulators and satellites, applied in the field of thermal testing of spacecraft environment control, to achieve fast response, reduced complexity, and small thermal inertia

Inactive Publication Date: 2009-07-08
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings of the traditional space environment ground simulator, the present invention designs this space heat sink simulator for the thermal test requirements of nano-satellites

Method used

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  • Nano-satellite spacing heat sink simulator

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Embodiment Construction

[0040] The present invention will be further described in detail with reference to the accompanying drawings and embodiments.

[0041] like figure 1 As shown, a nano-satellite space heat sink simulator 1 of the present invention includes a simulation unit 101 , a data acquisition unit 103 , a controller 102 , a power drive unit 104 and a communication unit 105 .

[0042] The controller 102 receives the heat flow and temperature feedback signals of the analog unit 101 through the data acquisition unit 103, generates a TEC control signal and a fan control signal to the power drive unit 104; the power drive unit 104 drives the TEC control signal and the fan control signal after amplifying TEC 101-1 and fan 101-3 work.

[0043] The communication unit 105 is a channel for data exchange between the upper computer and the controller 102. It receives information from the upper computer for use by the controller 102, and at the same time transmits data processed by the controller 102 ...

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Abstract

The invention discloses a heat sink simulator for nano-satellite space, which comprises an analogue unit, a data acquisition unit, a controller, a power driving unit and a communication unit. The analogue unit comprises a thermoelectric refrigeration sheet TEC, a heat flow sensor, a fan, a temperature sensor A, a temperature sensor B and fins; and the controller generates control signals of the TEC according to a feedback heat flow value acquired by the data acquisition unit and a given heat flow value as input of an algorithm controller, achieves good tracking of given heat flow by the feedback heat flow, namely, achieves good simulation of spatial radiation heat flow by heat conduction flow, transfers the heat led out by the TEC to the fins at the same time of ensuring heat flow tracking, achieves control of temperature of the fins by the fan according to control demand, radiates redundant heat to the air, and achieves simulation of spatial low temperature and black background environment. The heat sink simulator has the advantages of little thermal inertia, quick response speed and small volume, and achieves desktop representation of a nano-satellite heat test device.

Description

technical field [0001] The invention relates to the technical field of thermal testing of spacecraft environment control, in particular to a nano-satellite space heat sink simulator, which utilizes the active energy transfer capability of TEC and the heat dissipation and temperature control capability of fans to realize space vacuum, low temperature and black background space environment Simulation of radiative heat flow under a spacecraft. Background technique [0002] In order to verify the overall function of the spacecraft in the space environment and ensure the reliable operation of the spacecraft in orbit, sufficient environmental simulation experiments must be carried out on the ground, the most important of which is the thermal test under the simulated space thermal environment. [0003] Nano-satellites refer to small satellites with a weight between 1 and 10kg. They have the advantages of light weight, small size, and low design and manufacturing costs. Environment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20G05D23/01G05D23/185
Inventor 李运泽刘东晓王玉莹刘佳李运华王浚
Owner BEIHANG UNIV
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