Environment simulation device, system and method for low air pressure discharge test on Mars surface

Abstract

The invention discloses an environment simulation device, system and method for a low air pressure discharge test on Mars surface. The method comprises the following steps of: connecting the pressurecontrol unit with the vacuum flange through the pressure relief interface and the re-pressing interface; acquiring the vacuum degree data information in the vacuum tank, and comparing the received vacuum degree data information with the vacuum degree numerical range set by the actual test; when the vacuum degree data is larger than the upper limit value of the vacuum degree numerical range set bythe actual test, carrying out the pressure relief treatment on the vacuum tank; when the vacuum degree data of the pressure acquisition module is smaller than the lower limit value of the vacuum degree numerical range set by the actual test, carrying out the re-pressing treatment on the vacuum tank; and when the vacuum degree data of the pressure acquisition module is in the vacuum degree value range set by the actual test, carrying out the pressure maintenance treatment on the vacuum tank. According to the environment simulation device, system and method, the interference of a vacuum controlsystem is avoided, the function of pressure automatic control is provided, the pressure relief rate is controllable, the acquired data can be stored and analyzed, the power supply system is safe and reliable, and the stable operation time is long.

Description

Technical field [0001] The present invention relates to the technical field of deep space exploration. Specifically, the present invention relates to a low-pressure discharge test environment simulation device, system and method on the surface of Mars, which are used to complete thermal vacuum test and pressure relief test under low vacuum atmospheric conditions. -Highly test and detect the ability of active electronic equipment and microwave components working in a low vacuum environment to withstand corona, arcing and dielectric breakdown. Background technique [0002] Deep space exploration refers to human exploration activities on the moon and further celestial bodies or the space environment. As an important direction of human space activities and an important way of space science and technology innovation, it is one of the current and future development priorities in the field of space. With the continuous expansion of technology in the field of deep space exploration in my...

AI Technical Summary

Problems solved by technology

Among them, the demand for the low-pressure discharge test of Mars entering and the working section of the fire surface is very urgent. The vacuum degree of the current thermal vacuum test equipment can only reach 0-10Pa and 1.0×10 under the action of the three-stage pump. -3 Below Pa, the ability to withstand corona, arcing and dielectric breakdown of active electronic equipment and microwave components working in the low-vacuum environment in the field of deep space exploration cannot be tested

[0003] In the existing technical scheme, the vacuum equipment in the test center cannot achieve precise pressure control and low-pressure gas filling in actual operation

The main reasons are as follows: (1) When the thermal vacuum test tank leaves the factory, in order to prevent frosting, the pressure in the tank is set to be less than 5Pa, so that the temperature can be controlled; The resistance gauge is an indirect vacuum gauge, which uses the working principle of resistance wire heat conduction. In high temperature and low temperature environments, the measured value will be seriously distorted; (3) The current primary air pump has a large pumping speed and no bypass in the pipeline. Control, the pressure and rate of change required by the test cannot be accurately controlled; (4) The vacuum tank is a closed container. According to the ideal gas state equation: PV / T=constant, it can be known that the volume remains unchanged, the temperature changes, and the pressure changes accordingly.

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