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

Metal section small hole detection method and system based on electrical vortex sensor

An eddy current sensor and metal profile technology, which is applied in the direction of material analysis, instruments, and measuring devices by electromagnetic means, can solve the problems of insufficiency of small holes in metal profiles, false detection of small holes, and missed detection, and achieve a simple and reliable detection method. , The effect of simple circuit and simple installation

Active Publication Date: 2013-09-18
无锡普瑞精密技术有限公司
View PDF6 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the sensor probes for general on-line detection are all larger than 4mm, the detection of small holes in metal profiles, including blind holes and through holes, is insufficient, and the detection of small holes in metal profiles has high requirements for the installation position of the sensor, so metal The detection of profile small holes is often missed or falsely detected due to the size of the sensor or the installation accuracy; at the same time, the non-metallic substances such as plastic film and dust on the surface of the metal profile also have the influence of false detection on the detection of small holes

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
  • Metal section small hole detection method and system based on electrical vortex sensor
  • Metal section small hole detection method and system based on electrical vortex sensor
  • Metal section small hole detection method and system based on electrical vortex sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, the composition of the detection system used to realize the present invention is as follows, consisting of an eddy current sensor probe 3 and a signal controller 4 . The eddy current sensor probe 3 is placed above the metal profile 1 to be detected, and the eddy current sensor probe 3 is connected with the controller 4 .

[0030] figure 2 is a cross-sectional view of the eddy current sensor probe 3 . figure 2 The eddy current sensor probe 3 is composed of a Hall sensor 301 , a coil bobbin 302 , a shell 303 , an enameled wire 304 , a magnetic ring 305 and a wire 306 . The enameled wire 304 is wound on the bobbin 302; a magnetic ring 305 is placed inside the bobbin 302, and the two are closely matched; a hall sensor 301 is placed inside the magnetic ring 305, and is fixed with insulating glue. The bobbin...

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
diameteraaaaaaaaaa
depthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a metal section small hole detection method and system based on an electrical vortex sensor. The detection system consists of an electrical vortex sensor probe and a signal controller, wherein the signal controller comprises a signal generation circuit and a signal processing circuit. The electrical vortex sensor probe is arranged over against a small hole in a metal section, and is not in contact with the metal section; when the distance between the probe and the metal section is defined, and the small hole in the metal section passes through the probe, a signal output by the signal processing circuit has jump change. The method and the system are suitable for detecting the small hole in the metal section, and can especially and predominantly detect the small hole with nonmetallic substance interference on the surface.

Description

technical field [0001] The invention relates to the field of on-line detection technology, in particular to a detection method for on-line detection of small hole features on a metal profile with a flat surface while avoiding the influence of non-metallic substances on the surface of the metal profile, and a corresponding detection system. Background technique [0002] The demand for metal profiles is large and the production volume is large. However, at present, the detection of the surface characteristics of metal profiles is often done through offline manual inspection, which not only affects the production efficiency, but also easily leads to false detection and missed detection. A viable alternative is to use online testing. On-line inspection is a technology for real-time inspection of the produced products under the condition of conforming to the production beat. However, since the sensor probes for general on-line detection are all larger than 4mm, the detection of ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/90G01N27/9093
Inventor 周德强尤丽华左晓芳李唐张秋菊
Owner 无锡普瑞精密技术有限公司
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