FIBER-OPTIC MEASUREMENT SYSTEM Russian patent published in 2024 - IPC G01D5/26 G01B9/02 

FIELD: fiber optics.

SUBSTANCE: invention relates to a method of recording parameters obtained from sensors based on fiber Bragg gratings (FBG). Disclosed fiber-optic measuring system includes a broadband radiation source (1), first optical splitter (2), with at least two fiber-optic outputs, at least one circulator (3), comprising at least one fiber-optic output for connecting FBG sensors (4), first photodetector (5) and control and processing unit (6). At that, output of broadband radiation source (1) is connected to first optical splitter (2), one of outputs of which is connected to input of circulator (3), which direct output is connected to fiber-optic sensors (4), and the reverse output is connected to the receiving path, through which the reflection signal wavelength selection takes place, and connected to first photodetector (5), which, in turn, is connected to control and processing unit (6). Receiving path is presented in form of second optical splitter (7), which, in turn, is connected to the first spectral filter (8) and the second spectral filter (9), which are also connected to first photodetector (5) and second photodetector (10).

EFFECT: faster operation of the system.

1 cl, 1 dwg