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Sensors 2018, 18(7), 2213;

A Fiber Bragg Grating-Based Anemometer

Program of Electrical and Communications Engineering, Feng-Chia University, Taichung 40724, Taiwan
Department of Electrical Engineering, Feng-Chia University, 100 Wen-hwa Rd., Seat-wen, Taichung 40724, Taiwan
This paper is an expanded version based on the idea presented in the IEEE Tainan Section Sensors Council International Conference on Applied System Innovation 13–17 April 2018, Chiba, Tokyo, Japan.
Author to whom correspondence should be addressed.
Received: 26 May 2018 / Revised: 28 June 2018 / Accepted: 6 July 2018 / Published: 10 July 2018
(This article belongs to the Section Physical Sensors)
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A novel fiber anemometer based on two pairs of fiber gratings is experimentally demonstrated and can simultaneously detect wind speed and wind direction. One pair of gratings, which are separated by 90° in space, is fixed on a small stainless steel pipe driven by a rotating disc for measuring the wind-direction angle. The other pair is composed of a sensing and a matched grating. The frequency of the spectrum-shifted of the sensing grating to overlap with that of the matched grating is employed for determining the wind speed. The errors in the wind-speed and wind-angle measurements are experimentally demonstrated to be less than 1%. The proposed fiber anemometer with a simple and durable structure can be applied in wind-powered electricity generators. View Full-Text
Keywords: anemometer; stainless steel pipe; wind-speed measurement; wind-direction measurement; fiber Bragg grating (FBG) anemometer; stainless steel pipe; wind-speed measurement; wind-direction measurement; fiber Bragg grating (FBG)

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Huang, C.-Y.; Chan, P.-W.; Chang, H.-Y.; Liu, W.-F. A Fiber Bragg Grating-Based Anemometer. Sensors 2018, 18, 2213.

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