LU Gui-rong1, NI Peng-hao1, CHEN Shu-yue1. A new method for oil-water interface and oil level monitoring by two coils[J]. 2012, 31(5): 73-75. DOI: 10.13873/j.1000-97872012.05.046.
A novel approach for oil-water interface level and oil level monitoring in a single tank is presented.This liquid level sensor can determine the height of oil-water interface level and oil level.For achieving multi-sensing function
the designed sensor employs two coils wound on a plastic pipe.According to the relationships between oil-water interface level and inductance produced by a coil connected using the two coils
oil level and capacitance measured from two coils
the oil-water interface level and the oil level can be estimated at the same time.
On-line measurement of separation dynamics in primary gas/oil/water separators: Challenges and technical solutions—A review [J] . Artur J. Jaworski,Guangtian Meng. Journal of Petroleum Science and Engineering . 2009 (1)