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New spacecraft vacuum thermal test measurement and control device and method

A technology of vacuum thermal test, measurement and control device, applied in the field of measurement and control, can solve the problems of inability to detect whether the vacuum thermal test data is normal, inability to determine the accuracy of the experiment, etc., so as to shorten the test preparation time, improve the integration compatibility, and improve the quality.

Inactive Publication Date: 2020-01-07
SHANGHAI YUDA IND
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Problems solved by technology

The device cannot detect whether the vacuum thermal test data is normal, and cannot determine the accuracy of the experiment

Method used

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  • New spacecraft vacuum thermal test measurement and control device and method
  • New spacecraft vacuum thermal test measurement and control device and method
  • New spacecraft vacuum thermal test measurement and control device and method

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specific Embodiment approach

[0053] The invention also includes a PID self-tuning method, in order to shorten the test preparation time and further improve the control precision of the external heat flow. The specific implementation method is as follows: if the power supply is connected to the heating sheet, select the relay feedback PID self-tuning in the software; if the power supply is connected to the heating cage, select the fuzzy rule PID self-tuning in the software; turn on the digital multimeter and the matrix switch module, and cycle acquisition Temperature data, as feedback, PID parameters according to the selection mode, after determining the initial value, start self-tuning; after self-tuning is completed, a pop-up window will prompt the user to load the PID parameters after self-tuning to the software, and then the formal test task can be carried out;

[0054] The invention realizes the accurate control of the heat flow of the spacecraft in the vacuum thermal test. The system first uses a dome...

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Abstract

The invention provides a new spacecraft vacuum thermal test measurement and control device. The device comprises multiple vacuum devices and multiple subsystems of the same number. The vacuum device comprises a digital multimeter, a matrix switch board, a programmable power supply, a thermocouple, and a heating device. The matrix switch board is installed in a slot of the digital multimeter, the port of thermocouple is connected in the matrix switch board, the measuring end of the thermocouple is attached to the surface of a spacecraft through a transfer cable, and the output end of the programmable power supply is in insulation joint with the heating device through the transfer cable. The programmable power supply, the digital multimeter, and the subsystems are connected to a switch through a network cable to form a local area network. The power supply of domestic UDP communication protocol is adopted for the first time, and the software framework of producer-consumer-master / slave-registered events is adopted to ensure low coupling between threads, system operation stability and fast response.

Description

technical field [0001] The invention relates to the technical field of measurement and control, in particular to a novel measurement and control device and method for a vacuum thermal test of a spacecraft. Background technique [0002] The thermal vacuum test is a thermal vacuum test that verifies or checks the function of the spacecraft product, checks the manufacturing process of the spacecraft, and discovers the early failure of the spacecraft equipment under vacuum and specified temperature cycle conditions with the spacecraft equipped with real products. During the development process, the spacecraft must undergo a thermal vacuum test, and an identification-level thermal vacuum test must be performed during the initial sample development stage. For the launched spacecraft, whether it is the first launch or a repeated launch, each launch must be Acceptance level thermal vacuum test. Its purpose is to verify whether the spacecraft meets the design requirements under the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64F5/60B64G7/00
CPCB64G7/00B64F5/60
Inventor 汪新舜吴星云江浩宋歌韦笑
Owner SHANGHAI YUDA IND
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