光通信研究
光通信研究
광통신연구
STUDY ON OPTICAL COMMUNICATIONS
2014年
4期
64-66
,共3页
光纤布拉格光栅%光纤传感器%温度应力交叉敏感%仿真
光纖佈拉格光柵%光纖傳感器%溫度應力交扠敏感%倣真
광섬포랍격광책%광섬전감기%온도응력교차민감%방진
FBG%fiber-optic sensor%temperature-strain cross sensitivity%simulation
利用单个光纤光栅传感器的锥形结构和必要的参数同时测量应力和温度。通过写入线性光纤并将其制成锥形结构，利用 FBG(光纤布拉格光栅)的波长峰值和波形半峰值宽度来编码信息。FBG的半峰值宽度只依赖于应力，与温度的变化无关，利用这一特性，可以实现用单个光纤光栅解决应力和温度的交叉敏感问题。Matlab软件仿真结果表明，应力和温度的误差分别界定为±15.26με和±1.92℃。
利用單箇光纖光柵傳感器的錐形結構和必要的參數同時測量應力和溫度。通過寫入線性光纖併將其製成錐形結構，利用 FBG(光纖佈拉格光柵)的波長峰值和波形半峰值寬度來編碼信息。FBG的半峰值寬度隻依賴于應力，與溫度的變化無關，利用這一特性，可以實現用單箇光纖光柵解決應力和溫度的交扠敏感問題。Matlab軟件倣真結果錶明，應力和溫度的誤差分彆界定為±15.26με和±1.92℃。
이용단개광섬광책전감기적추형결구화필요적삼수동시측량응력화온도。통과사입선성광섬병장기제성추형결구，이용 FBG(광섬포랍격광책)적파장봉치화파형반봉치관도래편마신식。FBG적반봉치관도지의뢰우응력，여온도적변화무관，이용저일특성，가이실현용단개광섬광책해결응력화온도적교차민감문제。Matlab연건방진결과표명，응력화온도적오차분별계정위±15.26με화±1.92℃。
Strain and temperature are simultaneously measured by using the conical structure of a single Fiber Bragg Grating (FBG)sensor and the necessary parameters.Information is encoded by writing it in a linearly etched fiber and making it into a conical structure and using the peak wavelength and the waveform half peak width of the sensor.Strain-temperature cross-sen-sitivity of a single FGB can be resolved by utilizing the feature that its half peak width is only dependent on the applied strain, but not on temperature variations.Matlab simulation results indicate that the errors of the strain and temperature are defined as ±15.26μεand ±1.92 ℃ respectively.
