In this paper, we propose the novel system of multipoint measurement. The sensors of measurements are chirped Bragg grating and the interrogation of sensors is sub-carrier phase. The wavelength division multiplexing technique is used for addressing a network of FBG sensors and the time-division multiplexing technique is used for multipoint measurements. In the system, the modulation frequency of 200 MHz is adopted. The range of dectetion is from 0 to 900 με and the resolution is 12 με.The time of the sensor response is about 1ns.
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