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

High-precision low-power electromagnetic flow sensing device

A technology of flow sensing and low power consumption, which is applied in the field of high-precision and low-power electromagnetic flow sensing devices. It can solve the problems of high excitation power consumption and low precision, and achieve low power consumption, uniform magnetic field distribution, and high excitation efficiency. Effect

Pending Publication Date: 2018-08-31
HANGZHOU ENGRID TECH
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0014] The purpose of the present invention is to provide a high-precision and low-power electromagnetic flow sensor device, which solves the problem of high excitation power consumption and low precision of electromagnetic flowmeters in the prior art, especially solves the problem of electromagnetic household heat meters and household water meters. low power supply problems

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
  • High-precision low-power electromagnetic flow sensing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] see figure 1 It is a cross-sectional view of an embodiment of the high-precision and low-power electromagnetic flow sensor device of the present invention. It includes a measuring tube 1 , an upper magnetic plate 2 , a first electrode 3 a , a second electrode 3 b , a coil 4 , a magnetic core 5 , a U-shaped magnetic conductor 6 , a lower magnetic plate 7 , and a printed circuit board 8 .

[0037] see figure 1 , the cross-sectional shape of the through hole formed by the measuring tube 1 and the lower magnetic guide plate 7 is oblong, and its long axis is located at a horizontal position, the left and right are circular arcs, and the up and down are horizontal straight lines. The upper magnetically conductive plate 2 is horizontally placed in the through hole, and is located at the long axis of the oblong circle, so that the oblong through hole is symmetrically divided into an upper through hole and a lower through hole. The first electrode 3a and the second electrode 3...

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

The invention discloses a high-precision low-power electromagnetic flow sensing device. The device comprises a measuring tube, an upper magnetic plate, a first electrode, a second electrode, a coil, amagnetic core, a U-shaped magnet and a lower magnetic plate, a through hole of the measuring tube is divided into an upper through hole and a lower through hole by the upper magnetic plate, the lowermagnetic plate is arranged below the lower through hole of the measuring tube, the first electrode and the second electrode are respectively located on both sides of the lower through hole of the measuring tube, the coil horizontally surrounds the magnetic core, the magnetic core is located below the lower magnetic plate, and is placed in the U-shaped magnet, and the upper magnetic plate, the magnetic core, the U-shaped magnet and the magnetic plates are all magnetic conductors. The device has the advantages of small magnetic gap of an excitation magnetic field, high excitation efficiency, low power consumption, more uniform magnetic field distribution, high sensor precision and the like.

Description

technical field [0001] The high-precision and low-power electromagnetic flow sensor device of the present invention relates to the field of electromagnetic flow measurement, in particular to the field of low-power flow measurement such as heat metering, water metering, and sewage metering. The invention is applicable to heat meters, cold meters, water meters, sewage meters, etc., and its principle and structure are also applicable to other general fields requiring flow measurement with low power consumption. Background technique [0002] Electromagnetic flow sensor is a flow measurement device based on Faraday's electromagnetic induction principle. Its working principle is: when a fluid with a conductive medium passes through a magnetic field, the fluid cuts the magnetic field lines and generates an induced potential in the vertical direction of the magnetic field. Since the magnitude of the induced potential is proportional to the flow velocity of the fluid, by measuring th...

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 丁云李资庭傅仙荣陈丽君
Owner HANGZHOU ENGRID TECH
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