2014 Fiscal Year Final Research Report
Development of the Doppler lidar for wind measurement at large facility space
| Project/Area Number |
24560526
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Measurement engineering
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| Research Institution | Tokyo Metropolitan University |
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Principal Investigator |
SHIBATA Yasukuni 首都大学東京, システムデザイン研究科, 准教授 (10305419)
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| Co-Investigator(Renkei-kenkyūsha) |
NAGASAWA Chikao 首都大学東京, システムデザイン研究科, 名誉教授 (80145664)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | ライダー / 風速 |
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| Outline of Final Research Achievements |
In order to measure directly wind profile in the large facilities, I developed a new direct detection Doppler lidar using a volume Bragg grating filter (VBG). The temperature dependence of the VBG wavelength shift is 11.2 GHz / ℃. This is 1/6 or less of the conventional method of FBG wavelength shift. Furthermore, actually perform wind measurements in the room, and succeeded in obtaining a standard deviation 0.34 m / s in good agreement with the ultrasonic anemometer.
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| Free Research Field |
ライダー
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