Design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity

In the paper, a new capacitive sensor with a dielectric film coating was designed to measure the thickness of the liquid film on a flat surface. The measured medium can be conductive or non-conductive fluid with high viscosity such as silicone oil, syrup, CMC solution and melt. With the dielectric f...

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Main Authors:	Yongxin Yu, Ling Ma, Hongyu Ye, Yizhong Zheng, Yuzhen Ma
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2017-06-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/1.4985721

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spelling	doaj-0c3bbfb1b25748198150aac80c043d992020-11-24T22:40:09ZengAIP Publishing LLCAIP Advances2158-32262017-06-0176065207065207-1310.1063/1.4985721028706ADVDesign of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosityYongxin Yu0Ling Ma1Hongyu Ye2Yizhong Zheng3Yuzhen Ma4School of Computer Science and Technology, Tianjin University, Tianjin 300072, ChinaState Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin 300072, ChinaTianfa Science and Technology LTD of Tianjin University, Tianjin 300072, ChinaState Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin 300072, ChinaSchool of Mechanical Engineering, University of Jinan, Jinan 250022, ChinaIn the paper, a new capacitive sensor with a dielectric film coating was designed to measure the thickness of the liquid film on a flat surface. The measured medium can be conductive or non-conductive fluid with high viscosity such as silicone oil, syrup, CMC solution and melt. With the dielectric film coating, the defects caused by the humidity in a capacitor can be avoided completely. With a excitation frequency 0-20kHz, the static permittivity of capacitive sensor is obtained and stable when small thicknesses are monitored within the frequency of 0-3kHz. Based on the measurement principle, an experimental system was designed and verified including calibration and actual measurement for different liquid film thickness. Experimental results showed that the sensitivity, the resolution, repeatability and linear range of the capacitive sensor are satisfied to the liquid film thickness measurement. Finally, the capacitive measuring system was successfully applied to the water, silicone oil and syrup film thickness measurement.http://dx.doi.org/10.1063/1.4985721
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Yongxin Yu Ling Ma Hongyu Ye Yizhong Zheng Yuzhen Ma
spellingShingle	Yongxin Yu Ling Ma Hongyu Ye Yizhong Zheng Yuzhen Ma Design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity AIP Advances
author_facet	Yongxin Yu Ling Ma Hongyu Ye Yizhong Zheng Yuzhen Ma
author_sort	Yongxin Yu
title	Design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity
title_short	Design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity
title_full	Design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity
title_fullStr	Design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity
title_full_unstemmed	Design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity
title_sort	design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity
publisher	AIP Publishing LLC
series	AIP Advances
issn	2158-3226
publishDate	2017-06-01
description	In the paper, a new capacitive sensor with a dielectric film coating was designed to measure the thickness of the liquid film on a flat surface. The measured medium can be conductive or non-conductive fluid with high viscosity such as silicone oil, syrup, CMC solution and melt. With the dielectric film coating, the defects caused by the humidity in a capacitor can be avoided completely. With a excitation frequency 0-20kHz, the static permittivity of capacitive sensor is obtained and stable when small thicknesses are monitored within the frequency of 0-3kHz. Based on the measurement principle, an experimental system was designed and verified including calibration and actual measurement for different liquid film thickness. Experimental results showed that the sensitivity, the resolution, repeatability and linear range of the capacitive sensor are satisfied to the liquid film thickness measurement. Finally, the capacitive measuring system was successfully applied to the water, silicone oil and syrup film thickness measurement.
url	http://dx.doi.org/10.1063/1.4985721
work_keys_str_mv	AT yongxinyu designofinstantaneousliquidfilmthicknessmeasurementsystemforconductiveornonconductivefluidwithhighviscosity AT lingma designofinstantaneousliquidfilmthicknessmeasurementsystemforconductiveornonconductivefluidwithhighviscosity AT hongyuye designofinstantaneousliquidfilmthicknessmeasurementsystemforconductiveornonconductivefluidwithhighviscosity AT yizhongzheng designofinstantaneousliquidfilmthicknessmeasurementsystemforconductiveornonconductivefluidwithhighviscosity AT yuzhenma designofinstantaneousliquidfilmthicknessmeasurementsystemforconductiveornonconductivefluidwithhighviscosity
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Design of instantaneous liquid film thickness measurement system for conductive or non-conductive fluid with high viscosity

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