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

Intelligent sampling and metering device for identifying magnetic-field interference and identification method

A technology of measuring device and sampling device, which is applied to measuring device, volume/mass flow generated by electromagnetic effect, and application of electromagnetic flowmeter to detect fluid flow, etc. interference, etc.

Pending Publication Date: 2018-02-27
GOLDCARD HIGH TECH
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the equilateral triangle formed by the three magnetic sensors, take any corner corresponding to the vertical line and extend it, and load an external magnetic field of a certain strength on the extension line. In this case, it is impossible to identify external magnetic field interference. purpose, resulting in missed detection
[0007] To sum up, among the various metering solutions currently in use, the conventional two metering magnetic sensor solution is extremely susceptible to measurement failure due to external magnetic field interference, and the design of two metering magnetic sensors combined with a detection magnetic sensor has one aspect that cannot be accurately measured. Identify external magnetic interference, three magnetic sensor schemes, magnetic interference cannot be accurately identified in several special positions
Therefore, none of the above methods can completely and reliably identify external magnetic field interference, so there is a certain risk of measurement errors

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
  • Intelligent sampling and metering device for identifying magnetic-field interference and identification method
  • Intelligent sampling and metering device for identifying magnetic-field interference and identification method
  • Intelligent sampling and metering device for identifying magnetic-field interference and identification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as Figures 1 to 2 As shown, the intelligent sampling and metering device in this embodiment can be a gas meter or a meter, including a metering device and a sampling device, and the metering device includes a metering code disc 11 and a magnet 10 installed on the metering code disc 11, and the magnet 10 is a magnet Or magnetic steel, preferred magnetic steel in the present embodiment, sampling device comprises control board (not shown in the figure) and the sensor group that is located on the control board, sensor group is installed on the opposite side of control board and measuring code disc 11, The sensor group in this preferred embodiment includes a first sensor group and a second sensor group distributed on two concentric circles, the first sensor group and the second sensor group respectively include several sensors distributed on the same circumference, and the magnetic steel The projection on the control board is located in the area between two concentric ...

Embodiment 2

[0057] Such as Figure 5 As shown, compared with Embodiment 1, the difference of this embodiment is that the line connecting sensor a and sensor d is a straight line passing through the center of the circle, the line connecting sensor b and sensor c is a straight line passing through the center of the circle, and the two straight lines The included angle between them is γ, satisfying 0°<γ<180°. Such a design can meet different installation layouts and performance requirements of devices, and it can also achieve the effect of this embodiment, which will not be described in detail here.

Embodiment 3

[0059] Such as Figure 6 As shown, compared with Embodiment 1, the difference of this embodiment is that the second sensor group in this embodiment includes sensor b and sensor c, and sensor b and sensor c are symmetrically distributed on both sides of sensor a or sensor d , that is, sensor b and sensor c take the y-axis connecting sensor a and sensor d as the symmetric axis, and are symmetrically distributed on both sides of the y-axis. Such a design can meet different installation layouts and performance requirements of devices, and it can also The effect of this embodiment is achieved, which will not be described in detail here.

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 intelligent sampling and metering device for identifying magnetic-field interference and an identification method and belongs to the technical field of gas meters. The technical problem is solved that outside magnetic-field interference identification is not accurate in the prior art. The intelligent sampling and metering device comprises a metering device and a samplingdevice, wherein the metering device comprises a metering coded disc and a magnetic body installed on the metering coded disc, the sampling device comprises a control panel and sensor groups arrangedon the control panel, the sensor groups include a first sensor group and a second sensor group which are distributed on two concentric circles, each of the first sensor group and the second sensor group comprises a plurality of sensors distributed on the same circumference, the projection of the magnetic body on the control panel is located in the zone between the two concentric circles, the metering coded sic drives the magnetic body to rotate, the magnetic body rotates to cause magnetic signal state change in each sensor group, and judgment on outside interfering magnetic fields is achievedaccording to the magnetic signal state changes of the sensor groups.

Description

【Technical field】 [0001] The invention relates to the technical field of gas meters, in particular to an intelligent sampling and metering device. 【Background technique】 [0002] In the prior art, the intelligent sampling and metering device generally measures the flow rate by judging the magnetic signal sent by the magnetic sensor by the controller. In this way, the intelligent sampling and metering device will face the problem of external magnetic field interference, so how can it be used in any magnetic field interference situation? It is the key to flow metering equipment to identify the interference of external magnetic field. [0003] Taking a gas meter as an example, the current gas meters that use magnetic sensor devices as the source of metering signals are basically implemented using two or three magnetic sensors. There are two ways to detect external magnetic field attacks. One is that a specific magnetic sensor is used to detect external magnetic field attacks, ...

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
CPCG01F1/582
Inventor 金磊盛成龙佟志达丁渊明赵继高陈冬
Owner GOLDCARD HIGH 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