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

Shortening-related thermal tomography detection method and shortening-related thermal tomography detection system for GFRP (glass fiber reinforced plastics) crack defects

An imaging detection and thermal tomography technology, which is applied in the field of shortening related thermal tomography detection methods and systems, can solve problems such as affecting the performance of materials, suppress the thermal wave DC term, improve the detection signal-to-noise ratio, and increase the energy The effect of positioning

Inactive Publication Date: 2017-03-15
HARBIN INST OF TECH
View PDF4 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of manufacturing and using GFRP, it is easy to produce micro-crack defects, which seriously affects the performance of the material. Therefore, it is very necessary for the non-destructive detection of crack defects in GFRP materials.

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
  • Shortening-related thermal tomography detection method and shortening-related thermal tomography detection system for GFRP (glass fiber reinforced plastics) crack defects
  • Shortening-related thermal tomography detection method and shortening-related thermal tomography detection system for GFRP (glass fiber reinforced plastics) crack defects
  • Shortening-related thermal tomography detection method and shortening-related thermal tomography detection system for GFRP (glass fiber reinforced plastics) crack defects

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings, but it is not limited thereto. Any modification or equivalent replacement of the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention should be covered by the present invention. within the scope of protection.

[0023] Such as figure 2 As shown, the shortened correlation thermal tomography detection system provided by the present invention consists of GFRP detection specimen 1, vertical lift table 2, thermal imaging camera (FLIR SC7000, pixel: 320×256, response wavelength: 3.6~5.1 μm) 3 , Ethernet line 4, computer 5, USB data line 6, data acquisition card (NI-6229) 7, BNC data line 8, BNC trigger signal line 9, laser power supply 10, laser power line 11, 808nm laser (peak power 50W) 12. An optical fiber 13, a collimating mirror 14, and a three-dimensional mob...

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a shortening-related thermal tomography detection method and a shortening-related thermal tomography detection system for GFRP (glass fiber reinforced plastics) crack defects. The shortening-related thermal tomography detection system comprises a thermal infrared imager, an Ethernet cable, a computer, a USB (universal serial bus) data line, a BCN (broadband communication network) triggering signal line, a data collection card, a BNC data line, a laser device power source, a laser device power line, a laser device, an optical fiber and a collimating lens. The thermal infrared imager is connected with the computer through the Ethernet cable, the computer is connected with the data collection card through the USB data line, the data collection card is connected with the thermal infrared imager through the BNC triggering signal line and is connected with the laser device power source through the BNC data line, the laser device power source is connected with the laser device through the laser device power line, and the laser device is connected with the collimating lens through the optical fiber. The shortening-related thermal tomography detection system has the advantages that completely-damage-free, non-contact and efficient detection of the crack defects of GFRP materials can be realized, and dimensional limitation of detection materials is avoided.

Description

technical field [0001] The invention relates to a shortening correlation thermal tomography detection method and system, which are applicable to the detection and quantitative evaluation of crack defects in glass fiber reinforced plastic (GFRP) in the fields of aerospace, microelectronics, nuclear power and the like. Background technique [0002] Glass fiber-reinforced resin-based composites, which are made of glass fibers and high-performance resin matrix, are currently one of the most mature and widely used structural composite materials. GFRP has good electrical insulation and bonding properties, high mechanical strength and heat resistance, and excellent plasticity. GFRP materials have been widely used in aerospace, shipbuilding, petrochemical, automotive, wind power and military industries. However, in the process of manufacturing and using GFRP, it is easy to produce micro-crack defects, which seriously affects the performance of the material. Therefore, it is very ne...

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): G01N25/72
CPCG01N25/72
Inventor 刘俊岩王飞林裕山冀嘉琦王扬
Owner HARBIN INST OF 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