| 摘要 |
PURPOSE: A multiple-type optical fiber bragg grating sensor system is provided to rapidly and precisely detect an amount of wave transition of optical signals reflected from the optical fiber bragg grating sensor by radiating light in a predetermined time period. CONSTITUTION: A multiple-type optical fiber bragg grating sensor system includes a light emitting diode driving section(11), a light emitting diode(12), a photo coupler(13), an optical sensor section(14), an inclined grating filter(15), a first photo diode(16), a first detecting section(17), a second photo diode(18), a second detecting section(19), a division device(20), a control section(21) and a display section(22). The light emitting diode driving section(11) drives the light emitting diode(12) based on a pulse signal or PRBS(Pseudo Random Binary Sequence) signal. The light emitting diode(12) generates optical signals in a predetermined time period. The optical sensor section(14) receives the optical signals through the photo coupler(13) so as to reflect the optical signals. The inclined grating filter(15) receives the optical signals reflected from the optical sensor section(14) through the photo coupler(13).
|
