Aerostat capsule air tightness and leakage rate detection system and method

Abstract

The invention discloses an aerostat capsule air tightness and leakage rate detection system and method. The detection system comprises an aerostat, a buffer air bag, an air source, a data acquisition and control system, an air source switch valve, an air supply control valve, a three-way valve, an air release control valve, an air release valve, a pressure difference valve, an aerostat pressure difference transmitter, an aerostat pressure transmitter, a temperature transmitter network, an environment temperature transmitter and an environment pressure transmitter. The air source is communicated with the air supply control valve through the air source switch valve; the three-way valve is connected with an outlet of the air supply control valve, the air release control valve and the aerostat; the differential pressure valve is communicated with the aerostat and the buffer air bag; the air supply control valve and the air release control valve are controlled by the data acquisition and control system according to acquired signals of the pressure difference transmitter of the aerostat; the temperature transmitter network comprises all temperature transmitters arranged in the aerostat; the method is accurate in detection result, low in cost, convenient to operate and high in safety.

Description

technical field [0001] The invention provides a system and method for detecting the airtightness and leakage rate of an aerostat (including airships and balloons), which are used for the detection of the airtightness and leakage rate of the aerostat. Background technique [0002] Near-space aerostats are widely used in communication, navigation and positioning, air traffic control, and missile early warning due to their low cost of manufacture and use, long time in the air, good maintainability, large surveillance area, and not easy to be attacked by aircraft and ground air defense weapons. , forest fire alarm, and battlefield and air pollution monitoring and many other fields have a wide range of uses. [0003] Due to the possible damage to the capsule material of the aerostat and the process of processing, transportation, recycling, etc., the airtightness of the capsule of the aerostat cannot be guaranteed, and it must be tested before flying. [0004] The current airtigh...

AI Technical Summary

Problems solved by technology

It is difficult to obtain the accuracy of one-thousandth error in 3D reconstruction, and the error caused by the volume change of the aerostat without any prerequisites is even greater

Because the helium test is more expensive, the operation is complicated, and the high-pressure helium tank also has potential safety hazards, so there are also a few leak rate detection using air, and the leak rate of air is used instead of the leak rate of helium

However, when air is used instead of helium, the air leakage rate obtained is very different from that of helium, and there is no conversion method so far.

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