In order to enhance the signal-to-noise-ratio of a distributed acoustic sensing system based on phase-sensitive optical time-domain reflectometry (Φ-OTDR),we h
With the progress of the laser manufacturing technology,trace gas sensors based on tunable interband cascade lasers (ICLs) and quantum cascade lasers (QCLs) hav
In order to achieve rotation angle measurement,one novel type of miniaturization fiber Bragg grating (FBG) rotation angle sensor with high measurement precision