Miniature FBG-based fluidic flowmeter to measure hot oil and water

Zhengyong Liu; Lin Htein; Lun-Kai Cheng; Quincy Martina; Rob Jansen; Hwa-Yaw Tam

doi:10.1117/12.2264880

23 April 2017 Miniature FBG-based fluidic flowmeter to measure hot oil and water

Zhengyong Liu, Lin Htein, Lun-Kai Cheng, Quincy Martina, Rob Jansen, Hwa-Yaw Tam

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 1032336 (2017) https://doi.org/10.1117/12.2264880
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

In this paper, we present a miniature fluidic flowmeter based on a packaged FBG and laser-heated fibers. The flow rates of water and hydraulic oil were measured by utilizing the proposed flowmeter. The measured results exhibited good sensitivity of 0.339 nm/(m/s) for water and 0.578 nm/(m/s) for oil flow. Experimental results showed that the sensitivity of the fluidic flow sensor is depending on the heat capacity of the fluids, where the fluid with higher heat capacity has higher sensitivity and lower detection limit at the same measurement condition. The real-time flow rates measured by the proposed sensor and a commercial flowmeter installed in the test rig were also compared, demonstrating good agreement with correlation coefficient of 0.9974.

Citation Download Citation

Zhengyong Liu, Lin Htein, Lun-Kai Cheng, Quincy Martina, Rob Jansen, and Hwa-Yaw Tam "Miniature FBG-based fluidic flowmeter to measure hot oil and water ", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032336 (23 April 2017); https://doi.org/10.1117/12.2264880

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