2022
DOI: 10.1109/jsen.2021.3132098
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Polymer Optical Fiber Liquid Level Sensor: A Review

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Cited by 88 publications
(18 citation statements)
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“…The fusion of POF has resulted in a tenfold increase in temperature sensitivity. The main parameters of commercially available POF are large core diameter (from 500 to 1000 µm), the high value of numerical aperture (from 0.19 to 0.5), and high attenuation (from 0.19 to 0.25 dB/m for the wavelength of 650 nm) [66] comparing to 8.2 µm, 0.14 and 0.02 dB/km for 1525-1575 nm [67] for conventional silica glass optical fiber. It must be noted that even though the POF have acceptable attenuation in the visible range it is impossible to use them as a transmission medium in the telecommunication wavelength because of the very high attenuation of light [68] reaching 1000 dB/km for 1000 nm in case of PMMA POF (Figure 3).…”
Section: Polymer Fiber Optic Sensorsmentioning
confidence: 99%
“…The fusion of POF has resulted in a tenfold increase in temperature sensitivity. The main parameters of commercially available POF are large core diameter (from 500 to 1000 µm), the high value of numerical aperture (from 0.19 to 0.5), and high attenuation (from 0.19 to 0.25 dB/m for the wavelength of 650 nm) [66] comparing to 8.2 µm, 0.14 and 0.02 dB/km for 1525-1575 nm [67] for conventional silica glass optical fiber. It must be noted that even though the POF have acceptable attenuation in the visible range it is impossible to use them as a transmission medium in the telecommunication wavelength because of the very high attenuation of light [68] reaching 1000 dB/km for 1000 nm in case of PMMA POF (Figure 3).…”
Section: Polymer Fiber Optic Sensorsmentioning
confidence: 99%
“…OFSs are classified as intrinsic or extrinsic, the former one of which uses the optical fiber as a liquid level sensor probe, enabling the optical signal to be measured and modulated while the latter only employs optical fiber as the signal transmission medium and an external modulation device as the sensor. Various FOSs configurations for monitoring liquid levels, such as long-period gratings (LPG), Fabry–Perot cavities, fiber Bragg gratings (FBG), and multimode interference were presented in recent years [ 8 , 9 , 10 , 11 , 12 ]. In [ 10 ], etched chirped fiber Bragg grating (CFBG) is proposed as a liquid level sensor.…”
Section: Introductionmentioning
confidence: 99%
“…Water level monitoring is an important part of hydrological monitoring; continuous and reliable water level monitoring is of great significance for water safety guarantee, water resource management, and water environment and water ecology protection. At present, water level measurement approaches include manual reading, automatic water level measurement, and optical fiber-based liquid level measurement technology [ 1 ]. Manual reading is used to observe the water gauge with the naked eye; however, the reading frequency is low and it has a certain degree of subjectivity.…”
Section: Introductionmentioning
confidence: 99%