Infrared lamp array heat flow calibration method and calibration device in satellite heat balance test

Abstract

The invention belongs to the technical field of aerospace ground environment tests, and particularly relates to an infrared lamp heat flow calibration method and calibration device. The method comprises the steps of calibrating the temperature of a calibration plate under a constant heat flow, controlling the temperature of the calibration plate in a closed-loop manner by an infrared lamp array, acquiring the temperature of a corresponding heat flow meter, compensating the temperature of the calibration plate in real time by a compensation plate, controlling the temperature of the heat flow meter in a closed-loop manner by the infrared lamp array, acquiring the temperature of the corresponding calibration plate and compensating the temperature of the calibration plate in real time. The calibration plate temperature has influence on heat flow absorbed by the heat flow meter under different heat flows, and the compensation plate compensates the calibration plate temperature in real time.When the infrared lamp array is used for heat flow simulation, calibration of heat flow on the surface of the satellite structure plate can be achieved, and the accuracy of heat flow application is ensured.

Description

technical field [0001] The invention belongs to the technical field of spaceflight and ground environment tests, and in particular relates to an infrared lamp heat flow calibration method and a calibration device. Background technique [0002] At present, there are mainly the following methods for simulating heat flow outside the whole star test: [0003] 1. The thin film heating sheet is pasted on the surface of the structural plate or multi-layer surface for simulation. The advantage of this method is that it can accurately simulate the external heat flow, and can simulate the transient heat flow. The disadvantage is that it is not suitable for the surface of the satellite and it is not suitable for pasting the film heating sheet Case; [0004] 2. The infrared light array or infrared cage non-contact external heat flow simulation method is currently limited by the response time of the heat flow meter. Generally, only the quasi-steady-state heat flow simulation is performe...

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Problems solved by technology

[0005] 3. Use a solar simulator to simulate heat flow. The advantage of the solar simulator is that it can assess the performance of the thermal control coating on the surface of the satellite for the solar spectrum. Another advantage is that it can simulate the thermal coupling between adjacent structures, but the solar simulator is expensive. , high operation and maintenance costs

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