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系统地开展了对各类盘片式光纤传感器灵敏度的研究工作。以周边固支、中心镶嵌刚性质量块的盘片式光纤加速度传感器为例,分析了传感器弹性盘片上各点的应力应变状态;结合迈克耳孙干涉仪原理,建立了计算传感器加速度灵敏度的数学模型,并讨论了粘贴光纤盘的最佳尺寸。制作两个相应的传感器进行对比实验,验证了上述计算模型的正确性。采用上述模型系统地推导了不同边界条件情况下盘片式光纤传感器的粘贴区域和灵敏度计算公式。对盘片式光纤传感器如光纤加速度传感器、光纤压力传感器、光纤水听器等的设计制作具有理论指导作用。
Systematically carried out on the various types of disc-type optical fiber sensor sensitivity research. Taking the optical fiber acceleration sensors with rigid masses embedded in the periphery as an example, the stress-strain state of each point on the elastic disk was analyzed. Based on the principle of Michelson interferometer, a mathematical model was established to calculate the acceleration sensitivity of the sensor , And discussed the best size for pasting fiber optic discs. Making two corresponding sensors for comparison experiments verified the correctness of the above calculation model. The above model was used to systematically deduce the affixing area and the sensitivity formula of the disc-type optical fiber sensor with different boundary conditions. It has the theoretical guidance to the design and manufacture of the disc-type optical fiber sensors such as optical fiber acceleration sensor, optical fiber pressure sensor, optical fiber hydrophone and so on.