| Popis: |
In this paper, we design the Fiber Bragg Grating (FBG) strain and temperature sensors with aluminum alloy packaging. In order to evaluate and investigate the temperature characteristics of the aluminum alloy packaged FBG sensors, the bare and packaged FBG strain and temperature sensors are placed in high-low temperature test box, respectively. A detailed comparative experiment analysis on the FBG sensors under different temperatures ranging from -55℃ to 70℃ are conducted. The experimental results show that the temperature sensitivity of the aluminum alloy packaged FBG sensors are two times more than these of the bare FBG sensors, which also indicates that the aluminum alloy packaged FBG sensors have good temperature sensitivity, linearity, repeatability, and excellent temperature sensing characteristics. |
