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Optical fiber type wind speed detection device

A wind speed detection and optical fiber technology, which is applied in the field of fiber optic wind speed detection devices, can solve the problems of inability to apply wind speed detection in flammable and explosive environments, and can not be applied to wind speed detection, so as to achieve no electric spark hidden danger and strong anti-electromagnetic interference ability Effect

Pending Publication Date: 2020-07-24
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most rotary anemometers measure wind speed directly or indirectly through the correspondence between electrical signals and wind speed, which cannot be applied to wind speed detection in flammable and explosive environments.
Ultrasonic anemometers are sensitive to external electromagnetic interference and cannot be used for wind speed detection in environments with strong electromagnetic interference

Method used

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  • Optical fiber type wind speed detection device
  • Optical fiber type wind speed detection device
  • Optical fiber type wind speed detection device

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment, but they are not limitation of the present invention:

[0019] Such as figure 1 , figure 2 and image 3 As shown, a fiber-optic wind speed detection device includes a Venturi tube 1, a wind wheel 2, a ratchet 3, a force transmission pin 4, a force transmission cylinder 5, a first rotating shaft 6, a first positioning sleeve 11, a second positioning sleeve Tube 12, first universal board box 13, second universal board box 14, turntable 16, cantilever beam 18, optical fiber 19, the first universal board box 13 and the second universal board box 14 Through screw connection, the Venturi tube 1 is fixed between the first universal plate box body 13 and the second universal plate box body 14; the first rotating shaft 6 is processed with a shoulder; the first rotating shaft 6 The first bearing 7 is connected to the first universal plate box 13; the first r...

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Abstract

The invention discloses an optical fiber type wind speed detection device, and belongs to the technical field of optical fiber sensing. A Venturi tube is fixed between universal plate box bodies; a first rotating shaft is connected with the universal plate box bodies through bearings; a wind wheel and a ratchet wheel are connected with the first rotating shaft through flat keys; the fixed end of acantilever beam is fixed on the universal plate box bodies through a support; a force transmission cylinder provided with a through hole is fixed on the universal plate box bodies; a force transmission pin is positioned in the through hole of the force transmission cylinder; the two ends of the force transmission pin are in contact with ratchet teeth of the ratchet wheel and the free end of the cantilever beam correspondingly; a second rotating shaft fixed on a rotating disc is connected with the universal plate box bodies through bearings; an optical fiber provided with a light leakage areais pasted on the cantilever beam through flexible glue; the two ends of the optical fiber are connected with a light source and a light receiver correspondingly; the light source is electrically connected with a light source driving circuit; and the light receiver is electrically connected with a signal processing system. According to the device, no electronic device is arranged on a detection site, and the wind speed can be measured in a strong electromagnetic interference and flammable and combustible environment.

Description

technical field [0001] The invention relates to a wind speed detection device, in particular to an optical fiber wind speed detection device. Background technique [0002] Anemometers traditionally used to detect wind speed are mainly divided into rotary anemometers and ultrasonic anemometers according to their working principles. However, most rotary anemometers measure wind speed directly or indirectly through the correspondence between electrical signals and wind speed, which cannot be applied to wind speed detection in flammable and explosive environments. Ultrasonic anemometers are sensitive to external electromagnetic interference and cannot be applied to wind speed detection in environments with strong electromagnetic interference. The most important advantage of optical fiber is that it has the characteristics of anti-magnetic, explosion-proof and anti-electromagnetic interference. Therefore, the use of optical fiber sensing technology for wind speed detection can o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/07
CPCG01P5/07
Inventor 狄海廷支冠华李亚涛
Owner NORTHEAST FORESTRY UNIVERSITY
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