A device and method for real-time in-situ wind measurement in near space

A near-space, in-situ technology, applied in measuring devices, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve problems such as inability to meet wind field detection requirements, achieve light weight, no mechanical wear, and wind measurement accuracy high effect

Active Publication Date: 2021-08-17
NAT SPACE SCI CENT CAS
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Problems solved by technology

However, this in-situ wind measurement method can only detect a single vertical section of the atmospheric wind field at one time, and cannot meet the wind field detection requirements for large spatial coverage
In addition, there is currently no real-time in-situ wind measurement device and method that can conduct large-scale and long-term continuous wind measurement in the adjacent space, especially at the height of the stratosphere.

Method used

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  • A device and method for real-time in-situ wind measurement in near space
  • A device and method for real-time in-situ wind measurement in near space
  • A device and method for real-time in-situ wind measurement in near space

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Embodiment Construction

[0061] The use of ultrasonic waves for wind measurement is a relatively mature technology. However, due to the high frequency of ultrasonic waves, the attenuation of ultrasonic waves is extremely high in a thin atmosphere at high altitudes, and it is almost impossible to propagate. Therefore, this technology cannot be applied to high altitudes. The attenuation of acoustic wave signals with lower frequencies is relatively small and can be transmitted at short distances. Therefore, acoustic wind measurement technology can be used to achieve in-situ detection of atmospheric wind fields from the ground to the height of the stratosphere.

[0062] like figure 1 The basic principles of acoustic wind measurement are as follows:

[0063] The loudspeaker and the acoustic sensor are placed opposite and fixed, and the two are on the same horizontal line. Among them, the distance between the two is L, and the speed of the sound wave signal propagating from the speaker to the sound sensor ...

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Abstract

The present invention relates to a device and method for real-time in-situ wind measurement in adjacent space. The device includes: a loudspeaker, used for transmitting sound wave emission signals; an acoustic sensor, used for receiving sound wave emission signals; a transceiver control sub-device, used for sound wave The generation and amplification of the transmitted signal and the digitization of the received signal; the data processing sub-device is used to realize the inversion of the atmospheric wind field; and the environmental measurement sensor is used to obtain the current environmental temperature, humidity and air pressure data, which is used to calculate the air temperature in the atmospheric environment. The speed of sound; the device applies the sonic wind measurement technology to the measurement of the atmospheric wind field at the height of the adjacent space, and the wind speed information can be obtained by measuring the propagation delay time of the sound wave signal from the speaker to the acoustic sensor; the device is not only easy to implement, but also stable and reliable. With high wind accuracy, it has the ability to detect wind fields with a large spatial coverage from the ground to the stratosphere.

Description

technical field [0001] The invention belongs to the technical field of in-situ detection of atmospheric wind field, and in particular relates to a device and method for real-time in-situ wind measurement in adjacent space. Background technique [0002] At present, there are many in-situ wind measurement methods on the ground, mainly including: wind cup vane, wind speed tube, hot-wire type, ultrasonic wave, piezoresistive solid-state type, and impeller type. In addition, balloonsondes, dropsondes, and rocketsondes and other near-space in-situ wind measurement methods all use sounding balloons or parachutes as wind tracers to achieve wind field measurement. However, this in-situ wind measurement method can only detect a single vertical section of the atmospheric wind field at one time, which cannot meet the needs of wind field detection with large spatial coverage. In addition, there is currently no real-time in-situ wind measurement device and method that can conduct large-s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01W1/00G01P5/24
CPCG01P5/245G01W1/00Y02A90/10
Inventor 胡雄宋亮涂翠韦峰王欣颖闫召爱郭岗岗史东波
Owner NAT SPACE SCI CENT CAS
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