Active expansion ball for in-situ detection of near space atmosphere environment

Abstract

The invention relates to an active expansion ball for in-situ detection of a near space atmosphere environment. The active expansion ball comprises a ball drop package shell (1), an expanded ball film(2), an inflation mechanism (3) and a measuring unit (4). The expanded ball film (2) is internally provided with the inflation mechanism (3) and the measuring unit (4), the expanded ball film (2) issealed, and the sealed expanded ball film (2) is subjected to air exhaust and folding and is inlaid in the ball drop package shell (1); when the active expansion ball is subjected to separated ball throwing, the inflation mechanism (3) is used for air inflation for the folded expanded ball film (2) to form an overpressure ball, and the ball drop package shell (1) is unfolded by the expanded ball film (2) after air inflation and is separated from the expanded ball film (2); and the built-in measuring unit (4) is employed for in-situ measurement of the atmosphere environment.

Description

technical field [0001] The invention belongs to the technical field of in-situ detection of atmospheric environment in near space, and in particular relates to an active expanding falling ball for in-situ detection of atmospheric environment in near space. Background technique [0002] Near space is the transitional region between spaceflight and aviation. The in-situ parameters of the atmosphere from 0 to 30 km are mainly realized by conventional radiosondes, the in-situ detection of the atmospheric environment above 30 km is mainly realized by means of sounding rockets, and the detection of the atmospheric environment from 30 to 60 km can be detected by sounding rocket parachute sondes. Due to the low density of the atmosphere above 60km, the parachute opening time is too long, resulting in the rapid fall of the radiosonde, which makes it impossible for the parachute radiosonde to detect the atmospheric environment above 60km. [0003] As another in-situ detection payload...

AI Technical Summary

Problems solved by technology

The passive falling ball relying on the primary radar reflection on the ground can detect atmospheric parameters of 30-100 km, but its measurement accuracy is low, and the ground equipment is complex, the maneuverability is poor, and the use and maintenance costs are high

[0004] To sum up, the current in-situ detection technology that can be used for atmospheric density, temperature, pressure and wind field of 30-100 km in the adjacent space cannot achieve large vertical detection range, high vertical resolution, high measurement accuracy, and simple ground equipment , highly mobile detection requirements

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