Fiber Bragg grating demodulating device

The invention provides a fiber Bragg grating demodulating device and belongs to the field of optical fiber demodulating. The fiber Bragg grating demodulating device comprises a data demodulating module, a signal conditioning module, a data collecting module, a data calculating module and a data displaying module, the data demodulating module is connected with the signal conditioning module and the data collecting module respectively, the signal conditioning module is further connected with the data collecting module, and the data calculating module is connected with the data collecting module and the data displaying module respectively. By arranging the data demodulating module, the signal conditioning module, the data collecting module and the data calculating module, accuracy and precision of the fiber Bragg grating device are improved, data distortion caused by outside interference in the transmission process is reduced, error range is narrowed, authenticity of data is better guaranteed, and a condition in which a detected object is better reflected.