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An ultra-low wind speed measurement system

A wind speed measurement, ultra-low technology, applied in the field of measurement, to achieve the effect of high-precision measurement, low use environment requirements, and large signal value

Active Publication Date: 2019-04-23
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide an ultra-low wind speed measurement system to solve or alleviate at least one problem existing in the background of the prior art

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  • An ultra-low wind speed measurement system
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Embodiment Construction

[0025] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention discloses an ultra-low wind speed measurement system, which comprises at least one air velocity transducer with an airfoil-profile diversion speed-up nozzle, a high-static-pressure lumen, a low-static-pressure lumen, a differential pressure transmitter, and an analysis and display device. The high-static-pressure end of the air velocity transducer with the airfoil-profile diversion speed-up nozzle outputs to the high-static-pressure lumen via a lead. The low-static-pressure end of the air velocity transducer with the airfoil-profile diversion speed-up nozzle outputs to the low-static-pressure lumen via another lead. The high-static-pressure lumen and the low-static-pressure lumen are respectively connected with the high-static-pressure input end and the low-static-pressure input end of the differential pressure transmitter. The differential pressure transmitter receives a differential pressure signal and then dynamically outputs the signal to a wind speed measurement, analysis and display device in real time. The analysis and display device displays the measurement value of the wind speed. According to the technical scheme of the invention, the high-precision measurement of the low wind speed can be realized by means of the air velocity transducer with the airfoil-profile diversion speed-up nozzle. Meanwhile, the signal blind area is shortened, and the output signal magnitude is large. Moreover, the system is small in measurement pressure loss, convenient in installation and low in maintenance cost.

Description

technical field [0001] The invention relates to the field of measurement technology, in particular to an ultra-low wind speed measurement system. Background technique [0002] In some engineering applications or aircraft ground tests, based on mission requirements, high-precision measurement of low wind speed parameters in large and medium-sized closed pipes and ultra-low wind speed (0m / s--10m / s) is required, so as to achieve low Precise control of wind speed and working conditions. [0003] At present, there are many wind speed measurement methods. Generally, tube type (average velocity tube, flute tube, back-to-back tube, etc.) measurement method, Bar type (Vilibar, Super Liba, Detaba, etc.) measurement method, Pitot type (Pitto Venturi tube, leather tube, etc.) Turbine, etc.) measurement method, thermal sensor measurement method, built-in sensor measurement method, wing type sensor measurement method, cross-section multi-point sensor measurement method, etc., under the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/14
CPCG01P5/14
Inventor 杨世杰
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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