Flow measurement method based on a fringing field capacitor structure

A flow measurement method based on fringing field capacitors is proposed. Alternate annular electrodes are fabricated on the surface of the tube to constitute the capacitor structure, and the fringing field penetrates the wall to achieve the detection of fluid. The electric field between two electro...

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Bibliographic Details
Published in:Electronics letters 2016-10, Vol.52 (21), p.1771-1772
Main Authors: Liu, Zhe, Wang, WenLian
Format: Article
Language:English
Subjects:
Annular
annular electrodes
annular wall
Capacitors
electric field
Electrodes
Flow measurement
flow measurement method
fluid detection
foil capacitor
Foils (structural shapes)
fringing field capacitor structure
industrial application
Instrumentation and measurement
Measurement methods
plastic tube surface
Tubes
Walls
water flow measurement experiment
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Summary:A flow measurement method based on fringing field capacitors is proposed. Alternate annular electrodes are fabricated on the surface of the tube to constitute the capacitor structure, and the fringing field penetrates the wall to achieve the detection of fluid. The electric field between two electrodes distributes along the annular wall, which is conducive to analyse the relationship of the capacitance and the flow. The proposed measurement method is suitable for the industrial applications due to the simple structure and low cost. A water flow measurement experiment was implemented by making foil capacitor on the surface of a plastic tube.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2016.2081