Fiber Bragg grating type wind farm wind velocity long-range detector

The invention relates to a fiber Bragg grating type wind farm wind velocity long-range detector which comprises a rotating shaft fixedly provided with a wind cup and is characterized in that a cam is arranged on the rotating shaft, a fixed seat is arranged on one side of the rotating shaft, a spring piece is arranged on the fixed seat, the top part of the spring piece is in contact with a rim of the cam, and a fiber Bragg grating is longitudinally fixedly arranged on the spring piece; the fiber Bragg grating is connected with an optical fiber coupler through an optical cable, and the optical fiber coupler is respectively connected with an optical fiber light source and a fiber Bragg grating demodulator; and the fiber Bragg grating demodulator is connected with a computer. The fiber Bragg grating type wind farm wind velocity long-range detector is mainly used for manufacturing the wind velocity detector.