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A kind of optical fiber Bragg grating dynamic anemometer and using method thereof

An anemometer and optical fiber technology, applied in instruments, fluid velocity measurement, indication/recording actions, etc., can solve the problems of unable to monitor the wind direction of the wind field

Inactive Publication Date: 2016-05-25
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the literature, the wind cup type wind speed sensor structure is used, which can only monitor the wind speed of the wind field, but cannot monitor the wind direction of the wind field

Method used

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  • A kind of optical fiber Bragg grating dynamic anemometer and using method thereof
  • A kind of optical fiber Bragg grating dynamic anemometer and using method thereof
  • A kind of optical fiber Bragg grating dynamic anemometer and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: as Figure 1-4 As shown, a fiber Bragg grating dynamic anemometer, including impeller 1, impeller shaft 2, speed cam 3, vane shaft 4, empennage 5, bearing 6, fastening screw 7, direction cam 8, fiber Bragg grating 9, etc. Strength cantilever beam 10, base 11, angle cam 12; the impeller 1 is connected to the impeller shaft 2, the speed cam 3 is set on the impeller shaft 2, the first equal strength cantilever beam 10 is set on the side of the impeller shaft 2, the first equal strength cantilever The beam 10 is fixedly connected with the wind vane rotating shaft 4 through the fastening screw 7, the wind vane rotating shaft 4 is connected with the base 11 through the bearing 6, the tail of the wind vane rotating shaft 4 is provided with an empennage 5, the direction cam 8 and the angle cam 12 are arranged on the wind vane rotating shaft 4, and the wind vane rotating shaft 4 The second and third equal-strength cantilever beams 10 and third equal-strength cantil...

Embodiment 2

[0046] Embodiment 2: as Figure 1-4 As shown, a fiber Bragg grating dynamic anemometer, including impeller 1, impeller shaft 2, speed cam 3, vane shaft 4, empennage 5, bearing 6, fastening screw 7, direction cam 8, fiber Bragg grating 9, etc. Strength cantilever beam 10, base 11, angle cam 12; the impeller 1 is connected to the impeller shaft 2, the speed cam 3 is set on the impeller shaft 2, the first equal strength cantilever beam 10 is set on the side of the impeller shaft 2, the first equal strength cantilever The beam 10 is fixedly connected with the wind vane rotating shaft 4 through the fastening screw 7, the wind vane rotating shaft 4 is connected with the base 11 through the bearing 6, the tail of the wind vane rotating shaft 4 is provided with an empennage 5, the direction cam 8 and the angle cam 12 are arranged on the wind vane rotating shaft 4, and the wind vane rotating shaft 4 The second and third equal-strength cantilever beams 10 and third equal-strength cantil...

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Abstract

The invention relates to a dynamic anemorumbometer of optical fiber Bragg optical gratings and a use method of the anemorumbometer, and belongs to the technical field of photoelectron measurement components. The dynamic anemorumbometer comprises an impeller, an impeller rotary shaft, a rotation speed cam, a wind indicator rotary shaft, a tail wing, a bearing, a fastening screw, a direction cam, the optical fiber Bragg optical gratings, equal-strength cantilever beams, a base and an angle cam, wherein the impeller is connected with the impeller rotary shaft, the impeller rotary shaft is provided with the rotation speed cam, one side of the impeller rotary shaft is provided with one equal-strength cantilever beam which is fixedly connected with the wind indicator rotary shaft through the fastening screw, the wind indicator rotary shaft is connected with the base through the bearing, the wind indicator rotary shaft is provided with the direction cam and the angle cam, the two sides of the wind indicator rotary shaft are provided with the equal-strength cantilever beams fixed to the base, and the optical fiber Bragg optical gratings are attached to center axes of the surfaces of the equal-strength cantilever beams in an adhesive mode. The optical fiber Bragg optical gratings serve as sensing elements, and the wind speed and the wind direction are dynamically monitored on line in real time.

Description

technical field [0001] The invention relates to an optical fiber Bragg grating dynamic anemometer and a using method thereof, which belong to the technical field of optoelectronic measuring devices. Background technique [0002] Wind speed and direction measurement technology has a wide range of applications: for example, in the field of meteorology, it provides accurate data for typhoon monitoring; In the field of new energy, especially in the field of wind power generation, wind measurement technology plays an important role. At present, the commonly used wind speed and wind direction monitoring methods are: mechanical method, Pitot tube method, hot-wire hot film method, ultrasonic method, etc. In the field of wind power generation, the most widely used wind measurement system is the mechanical wind measurement system, which has simple structure, good linear relationship, fast response and good precision. [0003] The closest technology with the present invention is Wang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/06G01P13/02
Inventor 李川王敏吉熊新赵成均陈富云闫思安刘江赵振刚谢涛
Owner KUNMING UNIV OF SCI & TECH