Electromagnetic jat-flow flowmeter

A flowmeter, electromagnetic technology, applied in the field of flowmeter, can solve the problem that the magnet is easy to absorb rust in water, etc., to achieve the effect of enhanced magnetic field, small working current and accurate measurement

Inactive Publication Date: 2007-11-07
ZHEJIANG UNIV +1
View PDF3 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If we use a permanent magnet with a strong magnetic field, there will be

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 jat-flow flowmeter
  • Electromagnetic jat-flow flowmeter
  • Electromagnetic jat-flow flowmeter

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] The present invention proposes an electromagnetic structure in which an excitation coil and a permanent magnet are combined. The single-chip microcomputer can control the excitation coil through the drive circuit to control the intensity of the magnetic field. When the water flow rate becomes low, the coil is driven forward to increase the magnetic field, thereby enhancing the electrode signal strength; when the flow rate becomes high, the coil is driven in the reverse direction to weaken the magnetic field, allowing the water flow to wash away the debris. The jet flow meter using this new sensing method has the advantages of low power consumption, wide range, and maintenance-free.

[0023] The invention discloses an electromagnetic jet flow meter. It discloses that one flow block is installed in the measuring tube of the jet flow meter, a U-shaped electromagnetic structure is installed on the measuring tube, and two are installed in the measuring tube below the U-shaped el...

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 an electromagnetic jet flow flowmeter. It discloses a resist flow piece installs in the measuring tube of the jet flow flowmeter and a U type electromagnetism structure installs on the measuring tube, the first electrode, the second electrode, the third electrode installs on the measuring tube and resist flow side of the inferior of the U type electromagnetism structure. The U electromagnetism structure is composed by pair of permanent magnet and an exciting coil, controls by monolithic integrated circuit to strengthen or weaken the measuring tube magnetic field. The second electrode connects the grounding of the difference enlarge electric circuit by the wire, the first electrode, the third electrode connect the difference enlarge electric circuit input end by the wire, the difference enlarge electric circuit out-port connect the comparator electric circuit, the monolithic integrated circuit electric circuit in turn. The monolithic integrated circuit electric circuit also provides LCD monitor, pressed key input and so on electric circuit. The entire electric circuit uses a battery power supply. The merit of jet flow flowmeter is that the low power loss, the wide measuring range, the high exempt maintenance, reliable, high accuracy and so on.

Description

technical field [0001] The invention relates to a flow meter, in particular to an electromagnetic jet flow meter. Background technique [0002] Flow measurement is an important scientific measurement content, and water measurement is one of the most important contents. It plays an important role in trade settlement, energy measurement, process control, and environmental protection. In recent years, with the global shortage of energy and water resources and the start of key projects such as the South-to-North Water Diversion Project, the whole society has higher and higher requirements for water metering. At present, water metering instruments mainly include ordinary mechanical water meters and flow meters, and mechanical water meters and flow meters have their own characteristics. Mechanical water meters are widely used at home and abroad for their simple structure, stable measurement and low price. However, due to factors such as transmission resistance and mechanical mov...

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): G01F1/58G01F1/60
Inventor 石焕戴华平李志明徐云
Owner ZHEJIANG UNIV
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