Abstract A Type II-IR (infrared) grating cascaded with a regenerated fiber Bragg grating (RFBG) is described for force measurements at high temperature. The sensor was fabricated by fusion splicing a Type II grating with a Type I seed grating that was subjected to isothermal annealing in order to obtain the RFBG. Due to the different responses to temperature and force, these parameters were determined by measuring the reflection peak of the Type II grating and RFBG. The experimental results indicate that the sensor may be used for simultaneous measurement of temperature and force from 250 °C to 500 °C and 0.003 N to 0.797 N.

中文翻译：

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使用 II 型级联再生光纤布拉格光栅 (RFBG) 进行高温和力测量

摘要 描述了一种与再生光纤布拉格光栅 (RFBG) 级联的 II-IR（红外）光栅，用于高温下的力测量。该传感器是通过将 II 型光栅与经过等温退火以获得 RFBG 的 I 型种子光栅熔接来制造的。由于对温度和力的不同响应，这些参数是通过测量 II 型光栅和 RFBG 的反射峰来确定的。实验结果表明，该传感器可用于同时测量250°C至500°C和0.003 N至0.797 N的温度和力。