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Optical fiber passive type wind speed measuring device

An anemometer, passive technology, used in measuring devices, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve problems such as wear, reduce the accuracy and reliability of anemometers, aging, etc., and improve the starting wind speed. , to ensure flexibility and practicality, the effect of eliminating friction

Inactive Publication Date: 2017-01-04
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0005] The invention provides an optical fiber passive wind speed measuring device, which is used to solve the problems of wear and aging in the existing optical fiber grating wind speed measuring device and the problem that the temperature change reduces the accuracy and reliability of wind speed measurement

Method used

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  • Optical fiber passive type wind speed measuring device

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Embodiment Construction

[0022] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are shown in the drawings. The above are only the preferred embodiments of the present invention, and do not limit the scope of the present invention. Any equivalent structure or equivalent process transformation made using the content of the description and drawings of the present invention, or directly or indirectly applied to other related technical fields , The same reason is included in the scope of patent protection of the present invention.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of the present invention. The terminology used in the description of the present invention herein is only for the purpose of describing specific embodi...

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Abstract

The invention relates to the technical field of wind speed detection, in particular to an optical fiber passive type wind speed measuring device, which comprises a fixed chassis, a wind cup structure and a fiber grating strain sensor. The fixed chassis is provided with a central rotating shaft capable of rotating with respect to the fixed chassis, and the central rotating shaft is connected with the wind cup structure and a rotating round plate, the rotating round plate being provided with a magnet. The fiber grating strain sensor is arranged on the cantilever beam of a cantilever, and the free end of the cantilever beam is provided with a magnet, opposed to the magnet in the axial direction of the rotating round plate. With the invention, it is possible to minimize the wearing to the device from the long-term working of a hard wired apparatus. Through the detection of strain frequency, the impact of temperature on the measuring result can be minimized, therefore, raising the accuracy and reliability of wind speed measurement.

Description

Technical field [0001] The invention relates to the technical field of wind speed detection based on optical fiber grating sensing technology, and in particular to a fiber passive wind speed measurement device. Background technique [0002] At present, instruments for measuring air velocity are widely used in various fields, such as electric power, steel, petrochemical, energy saving and other industries. In daily life, many industries need to use wind speed monitoring devices, such as fan manufacturing, fishing industry, and exhaust air heating. Systems, etc., all need to use wind speed measuring devices to measure wind speed, wind temperature, and air volume. The existing wind speed measurement devices are divided into two categories: active measurement devices and passive measurement devices, such as electronic wind cup type, hot wire type, ultrasonic type, Doppler frequency shift type and Pitot tube type are all active measurement; The fiber grating contact type measures win...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/06
CPCG01P5/06
Inventor 李路明张治国朱倩刘赐麟孙元顺黄世信
Owner STATE GRID CORP OF CHINA
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