介绍一种新型的基于光纤光栅应变传感特性的金属腐蚀传感器。实验中,传感器被放置在腐蚀液中,并使用MOI SM125波长解调仪监测光纤光栅反射谱中心波长。加速腐蚀实验持续大约7 h,结束时应变片被腐蚀的厚度为1.2 mm,光栅反射谱中心波长偏移了约4 nm。实验结果证明了该传感器设计的合理性和在实际应用中的可能性,同时也讨论将该种传感器投入实用所需要进行的改进。 A new type of metal corrosion sensor based on fiber grating strain sensing is introduced. In the experiment, the sensor was placed in the etching solution and the center wavelength of the FBG reflection spectrum was monitored using the MOI SM125 wavelength demodulator. The accelerated corrosion test lasted about 7 h, and the thickness of the strain gauge was 1.2 mm at the end of the experiment. The center wavelength of the grating reflection spectrum was shifted by about 4 nm. The experimental results prove the rationality of the sensor design and the possibility in practical application, and also discuss the improvements needed to put the sensor into practical use.