분포형 광섬유 센서 기반의 절곡이 가능한 액위계 개발
Development of a Bendable Level Indicator Based on a Distributed Fiber Optic Sensor
0
조회
0
다운로드
1
인용
0
참고문헌
키워드
초록
In this study, we proposed a novel concept of liquid level indicator that can stably measure the liquid level even with changes in liquid density by enormous temperature changes. This uses a distributed optical fiber sensor based on Rayleigh scattering with high spatial resolution. Additionally, taking advantage of the flexibility of an optical fiber sensor, we introduced a bendable supporting structure and made it possible to freely adjust the angle for ease of installation of the liquid level indicator. In the proof-of-concept experiment using a prototype incorporating the proposed concept, we confirmed that the interface location can be effectively detected by utilizing the difference in heat transfer characteristics between liquid and gas phases, demonstrating the feasibility of liquid level measurement. Such a liquid level indicator is expected to enable more accurate level measurements in environments with huge temperature changes and to be conveniently used even in situations where installation and maintenance of the level meter are challenging due to complex internal structures.
Abstract
In this study, we proposed a novel concept of liquid level indicator that can stably measure the liquid level even with changes in liquid density by enormous temperature changes. This uses a distributed optical fiber sensor based on Rayleigh scattering with high spatial resolution. Additionally, taking advantage of the flexibility of an optical fiber sensor, we introduced a bendable supporting structure and made it possible to freely adjust the angle for ease of installation of the liquid level indicator. In the proof-of-concept experiment using a prototype incorporating the proposed concept, we confirmed that the interface location can be effectively detected by utilizing the difference in heat transfer characteristics between liquid and gas phases, demonstrating the feasibility of liquid level measurement. Such a liquid level indicator is expected to enable more accurate level measurements in environments with huge temperature changes and to be conveniently used even in situations where installation and maintenance of the level meter are challenging due to complex internal structures.
참고문헌 (9)
- Daniel J. Schieb, "Cryo-Tracker mass gauging system testing in a large-scale expendable launch vehicle LOX tank simulator", Proc. SPIE 6222, Sensors for Propulsion Measurement Applications, pp.622206~ (2006)
- Jung, J, W., "Structural frame analysis using domestic material(SS400, SM490, SWH400) according to the shape of plant Modularization", J. of Korean Soc. Mechanical Technology, 21(4), pp.736~741 (2019)
- Jung, H., "Feasibility Study on Extending Heating Capacity by Heat Recovery through a Heat Pump", J. of Korean Soc. Mechanical Technology, 11(3), pp.95~100 (2009)
- Christian M. Petrie, "Reactor radiation-induced attenuation in fused silica optical fibers heated up to 1000°C", Journal of NonCrystalline Solids, 409, pp.88~94 (2015)
- Christian M. Petrie, "Liquid level sensing for harsh environment applications using distributed fiber optic temperature measurements", Sensors and Actuators A : Physical, 282, pp.114~123 (2018)
- Chi X, "Optical Fiber-Based Continuous Liquid Level Sensor Based on Rayleigh Backscattering", Micromachines, 13(4), pp.633~ (2022)
- Stephen T. Kreger, "High-resolution extended distance distributed fiber-optic sensing using Rayleigh backscatter", Sensor Systems and Networks： Phenomena, Technology, and Applications for NDE and Health Monitoring 200, 6530, pp.65301R~ (2007)
- J. E. Antonio-Lopez, "Fiber-optic sensor for liquid level measurement", Sensor Systems and Networks: Phenomena, Opt. Lett, 36, pp.3425~3427 (2011)
- Rodriguez, Camilo A, "Envelope-based technique for liquid level sensors using an in-line fiber Mach-Zehnder interferometer", Applied optics, 55(34), pp.9803~9809 (2016)