XUE Yuanze, WANG Xuefeng, TANG Caijie, et al. Packaging technique of high temperature regenerated fiber Bragg grating temperature sensor[J]. 2019, (5): 49-51.
XUE Yuanze, WANG Xuefeng, TANG Caijie, et al. Packaging technique of high temperature regenerated fiber Bragg grating temperature sensor[J]. 2019, (5): 49-51. DOI: 10.13873/J.1000-9787(2019)05-0049-03.
A quartz-ceramic cube packaged high temperature regenerated fiber Bragg grating( RFBG)temperature sensor structure is proposed
aiming at problem of mechanical strength reducing and frangibility of optical fiber after high temperature regeneration. High temperature RFBG is obtained by 1 000 ℃ annealing and calibrated
and measurement precision and high temperature stability are tested. Experimental results show that the RFBG temperature sensors possess excellent reflection spectrums signal
measurement precision is prior to ± 3 ℃
and the temperature deviation is ± 0. 6 ℃ at 1 000 ℃ for 5 h.