Device for measuring current density distribution of arc

A density distribution and arc current technology, applied in current density measurement and other directions, can solve the problems of unintuitive measurement results and insufficient measurement accuracy, and achieve the effect of simple measurement operation process, simple data processing, and simple installation and disassembly.

Active Publication Date: 2012-09-05
NANJING UNIV OF SCI & TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to provide a method and device for measuring the distribution of arc current density in view of the existing problems in the prior art, such as complex equipment, insufficient mea

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
  • Device for measuring current density distribution of arc
  • Device for measuring current density distribution of arc
  • Device for measuring current density distribution of arc

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] A device for measuring arc current density distribution according to the present invention is assembled according to the following steps:

[0042] Step 1: If figure 2 As shown, the assembly of the current receiving sensing device 5: it includes a casing 21, the casing 21 is through front and back, and a wide slit with a width smaller than the upper receiving copper plate 16 is set in the middle of the top; the concave support block 19 is built in the casing, and the The concave support block 19 is provided with an upper receiving copper plate 16, a lower receiving copper plate 17, and an insulating layer 18 placed between the upper receiving copper plate 16 and the lower receiving copper plate 17; adjusting screws 22 are set at the four corners of the bottom of the shell, and the height of the adjusting screw 22 is adjusted. , so that the concave support block 19 and the shell 21 clamp and position the upper receiving copper plate 16, the middle insulating layer 18, an...

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

PropertyMeasurementUnit
Widthaaaaaaaaaa
Thicknessaaaaaaaaaa
Login to view more

Abstract

The invention aims at solving the shortcomings of complex equipment, insufficient measurement precision, unintuitive measurement results and the like in the prior art and provides a method and a device for measuring current density distribution of arc. The method is characterized in that the equipment is simple, the measurement precision is high, the post data processing is simple and the current density distribution can be intuitively reflected. When the device is used for measuring, an electric motor drives a screw rod to rotate; then a sliding part and a current collecting part which are arranged at a sliding groove are driven to move relative to arc; scanning collection is performed on current value of arc by the current collecting part; a mathematical model of the current density distribution of arc is established; energy distribution of the arc on the section of the surface of positive pole is divided into each pixel point the area of which is regular and computable; and then the current density distribution value of the arc is solved.

Description

technical field [0001] The invention belongs to the field of arc characteristic testing, in particular to a method and device for measuring arc current density distribution. Background technique [0002] The arc current density is one of the main parameters characterizing the characteristics of the welding arc. It can directly reflect the current distribution of the welding arc on the surface of the workpiece, and further reflect the distribution of heat input from the arc to the weldment. The shape of the pool, the size of the penetration depth, the transfer of the droplet, and the shape of the weld are all closely related. [0003] For the DC TIG arc, the research work mostly focuses on the distribution of the current density on the surface of the anode, because it can not only reflect the energy density, specific heat flow and distribution of the anode hot spot on the surface of the workpiece, but also reflect the heat input of the workpiece. In this process, not only ca...

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): G01R19/08
Inventor 周琦周彦松周芷兰王克鸿朱军黄俊张德库冯曰海彭勇景岩章晓勇
Owner NANJING UNIV OF SCI & TECH
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