Liquid Level Sensor Based on a V-Groove Structure Plastic Optical Fiber.
Liquid Level Sensor Based on a V-Groove Structure Plastic Optical Fiber.
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基于V型槽结构塑料光纤的液位传感器
DOI：
10.3390/s18093111
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发表时间：
2018-09-14
期刊：
影响因子：
--
通讯作者：
Zheng J
中科院分区：
文献类型：
--
作者：
Teng C;Liu H;Deng H;Deng S;Yang H;Xu R;Chen M;Yuan L;Zheng J
介绍了一种基于V型槽结构塑料光纤（POF）的高灵敏度、易加工的液位传感器。在设计中，塑料光纤上的V型槽结构采用模压印刷的方法制作，有效降低了制作工艺的复杂度，便于液位传感器的批量生产。这极大地增强了所提出的传感器在成本有效的液位感测应用中的有用性。当液体上升或下降时，V型槽结构的浸入或露出都会改变塑料光纤的传输特性。研究了不同结构参数的传感器探头的液位传感性能，测试了不同折射率液体的传感性能和传感器的动态响应。实验结果表明，该传感器的灵敏度可达0.0698 mm−1，分辨率为2.5 mm，响应时间为920 ms。
A high sensitivity and easily fabricated liquid level sensor based on the V-groove structure plastic optical fiber (POF) was described. In the design, the V-groove structure on the POF is produced by using a die-press-print method, which effectively reduces the complexity of the fabrication process and makes it easier for mass production of liquid level sensors. This greatly enhances the usefulness of the proposed sensor in cost effective liquid level sensing applications. The transmission characteristic of the POF could be changed when the V-groove structure was immerged or emerged by the rising or falling liquid. The liquid level sensing performances for the sensor probes with different structural parameters were investigated, and the sensor performances for the liquids with different refractive indices and the sensor dynamic response were also tested. Experimental results show that the sensor’s sensitivity can reach 0.0698 mm−1, with a resolution of 2.5 mm. Results also show that the sensor has a fast response time of 920 ms.
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