Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A water content measurement method based on dielectric loss tangent tomography

A technology of dielectric loss angle and tomography, which is applied in the direction of material impedance, can solve the problems of being easily affected by flow patterns and inaccurate water content measurement, and achieve the effect of improving image reconstruction accuracy and calculation accuracy

Active Publication Date: 2022-03-11
XI'AN PETROLEUM UNIVERSITY
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that the traditional moisture content measurement is inaccurate and easily affected by the flow pattern, the purpose of the present invention is to provide a moisture content measurement method based on dielectric loss tangent tomography technology, which uses non-contact array electrode tomography Imaging technology enables water cut measurement without disturbing the flow field and flow pattern, and adopts sensitivity adaptive adjustment and image segmentation module to improve the quality of image reconstruction and further improve the accuracy of water cut measurement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A water content measurement method based on dielectric loss tangent tomography
  • A water content measurement method based on dielectric loss tangent tomography
  • A water content measurement method based on dielectric loss tangent tomography

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A water content measurement method based on dielectric loss tangent tomography, step 1: Obtain the quadrature component and the in-phase component of the voltage response signal of the sensor array electrode through the impedance measurement circuit, and then obtain the loss reflecting the mixture in the area to be measured Angle tangent of displacement current phase value Step 2: Mathematical modeling of sensor parameters to obtain the initial sensitivity matrix S 0 ; Step 3: According to the obtained measured displacement current phase value and the initial sensitivity matrix S 0 , using the image reconstruction algorithm to obtain the real-time changing medium distribution image of the measured fluid; Step 4: Carry out image segmentation processing on the reconstructed image, effectively separate the target from the background, and then obtain the water content of the mixture; the present invention compares the existing The moisture content measurement technology has the following advantages: non-contact, fast response, wide application range, high safety and no radiation, simple equipment structure and not affected by flow patterns.

Description

technical field [0001] The invention relates to the technical field of multiphase flow parameter detection by electrical methods, in particular to a method for measuring water content based on dielectric loss tangent tomography technology. Background technique [0002] The measurement accuracy of water cut meters for multiphase flow parameter measurement in the market today is generally not high, especially when the flow state of the fluid mixture is complex, the measurement accuracy is more difficult to guarantee. In order to eliminate the influence of flow pattern, process tomography (PT) has gradually developed into a new generation of real-time detection technology of spatial parameter distribution with two-phase flow or multiphase flow as the main detection object. Among them, Electrical Capacitance Tomography (ECT) is an electrical tomography technology based on the capacitance sensitive mechanism, because it has the advantages of non-contact, fast response, high safet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/02
CPCG01N27/02
Inventor 王小鑫陈延军李燕李利品陈阳正
Owner XI'AN PETROLEUM UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com