Mr. Xiaolin Lin Profile

Xiaolin Lin

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Proceedings Article | 24 August 2009 Paper

The design of optical fiber vortex flowmeter's probe

Xiaolin Lin, Yutian Wang, Yang Ni, Jianxia Li

Proceedings Volume 7381, 73812V (2009) https://doi.org/10.1117/12.835049

KEYWORDS: Optical fibers, Liquids, Light, Light sources, Optical design, Sensors, Modulation, Optical circuits, Reliability, Semiconductors

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The vortex flowmeter works in a poor environment, therefore the stability and accuracy of the online testing system have become the core question for getting high accuracy. The optical probe is the main part of the system which produces and obtains the vortex signal. This paper designs the vortex shedder according to the hydromechanics principle, and it is proposed to be ringlike structures, also gives the test results which prove the effectiveness of the shedder on vortex decomposition. A liquid flow online testing system is designed according to the vortex signal characteristics, and the optical fiber is chosen as the sense organ. Then it designed the probe's parameters and the necessary important circuits of the system to further increase its accuracy. It also assembles the sensor system which is designed to insure the rationality, reliability, stability of the structure. Finally it proposed the methods on the coefficient revision and the liquid condition parameter compensation to get higher accuracy.

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