A novel strain and position sensor based on a linearly chirped fiber Bragg grating

作者：Liu D^*; Liu H; Liu D^*

来源：Optoelectronics and Advanced Materials-Rapid Communications, 2010, 4(6): 795-798.

• Fiber Bragg grating
• Chirped
• Sensor
• Strain

We propose and experimentally demonstrate a position sensor system based on a thermally-induced linearly chirped fiber Bragg grating (LCFBG). Eight NiCr resistance wires are used to heat the LCFBG at eight small points to generate multiple narrowband transmission peaks within the stopband of the transmission-mode LCFBG. By monitoring the wavelength shift of the thermally-induced transmission peaks, strain information can be extracted. This sensor system provides the unique advantages of compact structure, cost-effective, able to demodulate both the strain and position information with only one sensor element.

• 出版日期2010-6
• 单位华中科技大学