Department of Mechanical and Electro-Mechanical Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan.
Sensors (Basel). 2010;10(11):10198-210. doi: 10.3390/s101110198. Epub 2010 Nov 15.
In this study, a high sensitivity and easy fabricated plastic optical fiber (POF) displacement sensor is proposed. A POF specimen subjected to dual cyclic bending is used to improve the sensitivity of the POF displacement sensor. The effects of interval between rollers, relative displacement and number of rollers on the sensitivity of the displacement sensor are analyzed both experimentally and numerically. A good agreement between the experimental measurements and numerical calculations is obtained. The results show that the interval between rollers affects sensitivity most significantly than the other design parameters. Based on the experimental data, a linear equation is derived to estimate the relationship between the power loss and the relative displacement. The difference between the estimated results and the experimental results is found to be less than 8%. The results also show that the proposed POF displacement sensor based on dual cyclic bending can be used to detect displacement accurately.
在这项研究中，提出了一种高灵敏度且易于制造的塑料光纤（POF）位移传感器。使用经过双循环弯曲的 POF 试件来提高 POF 位移传感器的灵敏度。实验和数值分析了滚轮之间的间隔、相对位移和滚轮数量对位移传感器灵敏度的影响。实验测量和数值计算之间得到了很好的一致性。结果表明，滚轮之间的间隔比其他设计参数对灵敏度的影响更为显著。基于实验数据，推导出了一个线性方程来估计功率损耗与相对位移之间的关系。估计结果与实验结果之间的差异小于 8%。结果还表明，基于双循环弯曲的所提出的 POF 位移传感器可用于准确检测位移。
