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Five-hole dual-tube anemometer and wind metering method thereof

An anemometer and binocular technology, applied in the field of measurement, can solve problems such as limiting the ability to measure wind, achieve the effects of low cost, simplify the measurement process, and improve the scope of application and operability

Active Publication Date: 2014-12-10
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method can only be used when the range of |α|≤45° and |β|≤35° changes. Before the measurement, a large number of complicated experiments are required to calibrate the measurement effect of the probe, which greatly limits the wind measurement. Ability

Method used

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  • Five-hole dual-tube anemometer and wind metering method thereof
  • Five-hole dual-tube anemometer and wind metering method thereof
  • Five-hole dual-tube anemometer and wind metering method thereof

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Embodiment Construction

[0056] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:

[0057] Such as figure 1 and figure 2 , the five-hole binocular anemometer has a middle hole 5, a first hole 1, a second hole 2, a third hole 3 and a fourth hole 4, the middle hole 5 adopts a coaxial binocular, and the distance between the barrels is Δl , both ends of the outer cylinder 6 are open, and the front end of the inner cylinder 7 is closed and connected with the outer cylinder with a fixed rib 8; as Figure 6 , the inner cylinder of the middle hole 5 is divided into three parts: the middle drilling section is drilled with four rows of through holes 9 positioned at the circumference of the inner cylinder, each row has six through holes, and the rectifying section has no through holes at both ends; The head of the tube anemometer is spherical, and the tail is cylindrical; four first holes 1, second holes 2, third holes 3 and fourth ho...

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Abstract

The invention provides a five-hole dual-tube anemometer and a wind metering method thereof, belonging to the metering technical field. The invention provides a device for metering wind speed which is not subjected to the restriction of flow directions. The head of the five-hole dual-tube anemometer is spherical, a central hole adopts a coaxial dual-tube structure, two ends of the outer tube are opened, and the front end of the inner tube is closed and is connected to the outer tube through a fixing rib; the middle drilling section of the inner tube is provided with four rows of through holes in the circumferential direction; six through holes in each row are used as static vents; the tail ends of the five holes are connected with a micromanometer, and the readings of the micromanometer are intensities of pressure stressed by each hole; and the five-hole dual-tube anemometer is placed in a wind field to be tested, the intensity of pressure of each hole is calculated, and then the wind speed and direction of wind are calculated. The five-hole dual-tube anemometer and wind metering method thereof have the advantage that the metering of the wind speed vector can be realized without calibrating the five-hole dual-tube anemometer; and the state of the five-hole dual-tube anemometer is not limited when the five-hole dual-tube anemometer is used for metering, so the five-hole dual-tube anemometer can be moveable or fixed.

Description

technical field [0001] The invention belongs to the technical field of measurement, and relates to a method for measuring space wind speed by a five-hole double-tube anemometer, which has the characteristics of simplicity, reliability and no need for calibration. Background technique [0002] The method of using probes to measure the spatial wind field has been popular for many years and has a wide range of applications, mainly based on the Bernoulli equation: [0003] P t = P s + 1 2 ρ s V 2 = P s + q c - - - ( 1 ) [0004] Where: P t - total pressure; P s - static pressure; -Dynamic pressure; the basic equipm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/14
Inventor 韦常柱郭继峰崔乃刚白成超
Owner HARBIN INST OF TECH
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