Near-space real-time in-site wind speed and direction sensor based on wind pressure prediction

Abstract

The disclosure provides a near-space real-time in-site wind speed and direction sensor based on wind pressure prediction. The sensor comprises a housing in a cylindrical shape, a top cover arranged above the housing, n differential pressure amplifying structures, windward-zone differential pressure detection devices, and air-out differential pressure detection devices. The n differential pressureamplifying structures are used for amplifying the differential pressure of wind fluid, wherein the n is larger than or equal to 3; the differential pressure amplifying structures have hollow tube shapes with the thin middle parts and two thick ends and are arranged along different cross sections of the housing; circular holes are formed at connection parts between the two ends of the differentialpressure amplifying structures and the cylindrical wall of the housing; and the differential pressure amplifying structures includes windward zones, middle sections, and air-out zones. The windward-zone differential pressure detection devices are arranged at the windward zones by differential pressure detecting tubes and are used for measuring the differential pressures in the windward zones. Theair-out differential pressure detection devices arranged in the air-out zones by the differential pressure detecting tubes are used for measuring the differential pressures in the air-out zones. And then the wind speed and wind direction of near space are calculated based on the pressure differences in the windward zones and the air-out zones. Therefore, a technical problem that the wind speed anddirection measurement of the near space is affected by the temperature and height greatly in the prior art can be solved.

Description

technical field [0001] The disclosure belongs to the field of sensor design and preparation, and particularly relates to a real-time in-situ wind speed and direction sensor in an adjacent space based on wind pressure prediction. Background technique [0002] Due to the difference between the low temperature and low pressure environment in the adjacent space and the ground environment, conventional ground wind measuring devices cannot be used for the measurement of high-altitude atmospheric wind field. Balloonsondes, dropsondes, and rocketsondes and other wind measurement methods use sounding balloons or parachutes as wind tracers to measure wind fields, and can only detect a certain amount of wind field in the adjacent space at one time. One point, it cannot meet the real-time and in-situ spatial wind field detection requirements. The China Aerospace Aerodynamics Technology Research Institute published a paper "Development of Low-Speed ​​Aircraft Anemometer in Near Space an...

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Problems solved by technology

[0005] In view of this, the present disclosure provides a real-time in-situ wind speed and direction sensor in adjacent space based on wind pressure prediction, which is based on the principle of pressure difference, so as to alleviate the large influence of temperature change in the measurement of wind speed and direction in adjacent space in the prior art, and the air density changes with the air density. The wind pressure changes with the change of height and is small, so the wind pressure is very weak, and the conventional wind pressure test method cannot obtain the specific value of wind speed and direction and other technical problems

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