Electromagnetic flow sensor of non-insulated measuring pipe

A technology of electromagnetic flow and measuring tubes, which is applied in the application of electromagnetic flowmeters to detect fluid flow, volume/mass flow generated by electromagnetic effects, etc., which can solve problems affecting accurate flow measurement and difficulty in applying electromagnetic flow sensors, etc., and achieve easy application Effect

Inactive Publication Date: 2006-06-28
李斌
View PDF2 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flexible measuring tube will affect the accurate measurement of the flow

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
  • Electromagnetic flow sensor of non-insulated measuring pipe
  • Electromagnetic flow sensor of non-insulated measuring pipe
  • Electromagnetic flow sensor of non-insulated measuring pipe

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0017] Specific implementation plan

[0018] A preferred embodiment of the present invention is as follows: see figure 1 .

[0019] The electromagnetic flow sensor of the non-insulated measuring tube includes a rigid measuring tube 1 with an inner diameter of D for the fluid to be measured to flow, and an excitation unit 2 that generates a magnetic field B perpendicular to the flow direction of the fluid on the rigid measuring tube 1; The fluid in the rigid measuring tube 1 has a flow velocity V. Under the action of the magnetic field B, the fluid in the rigid measuring tube 1 generates an induced electric potential E, E=K0×D×B×V, K0 is a coefficient; it is characterized by the magnetic field B There are two measuring points a and b on the outer tube wall of the rigid measuring tube 1 within the scope of action, which directly lead to the output signal X for measurement, X=K1×K2×E, K1 is rigid and non-insulated with the two points a and b The coefficient related to the position o...

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

An electromagnetic flow rate transducer of no insulated measurement tube consists of a rigid measurement tube with internal diameter of D to let fluid to be measured flow through and an excitation unit set on rigid measurement tube for generating magnetic field B vertical to fluid flowing direction. It is featured as generating induction potential E of fluid with flowing speed V in said tube under action of magnetic field B, setting a and B measuring points in action scope of magnetic field B to directly lead output signal X out for measuring.

Description

technical field [0001] The invention relates to an electromagnetic flow sensor, in particular to an electromagnetic flow sensor of a non-insulated measuring tube. technical background [0002] The principle of the electromagnetic flow sensor is: the fluid flows in a measuring tube with a diameter of D under the action of a vertical magnetic field B, and the fluid cuts the magnetic field line to generate an induced potential E proportional to the fluid velocity V in the direction perpendicular to the magnetic field and flow, E= K0×D×B×V, K0 is the coefficient, and E is taken as the output signal. Existing common electromagnetic flow sensors all use insulating measuring tubes so as not to reduce the output. There are two ways to obtain the induced potential: one is to drill a hole in the wall of the insulating measuring tube, install a conductive measuring electrode, and draw the induced potential through the electrode contacting the fluid and directly use it as an output sig...

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
IPC IPC(8): G01F1/58
Inventor 李斌沈天飞刘可昌袁春华
Owner 李斌
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap