Method and apparatus for eddy-based electronically-controlled scanning and monitoring
A monitoring device, eddy current detection technology, applied in measuring devices, material analysis through electromagnetic means, instruments, etc., can solve the problems of automatic detection technology difficulty and high cost, low detection efficiency, manual detection, etc., and achieve device detection efficiency and High detection accuracy, lower detection cost, and elimination of detection blind spots
Active Publication Date: 2015-07-15
EDDYSUN (XIAMEN) ELECTRONICS CO LTD
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
At present, non-destructive testing methods such as magnetic particle and penetration are mostly used. Most of these testing methods require manual testing, the testing efficiency is low, and they cause environmental pollution. Although ultrasonic testing can realize automatic testing, it is limited by the coupling problem of ultrasonic probes. Difficulty and high cost
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0029] figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 , Figure 9 , Figure 10 In the shown embodiment, an eddy current electronically controlled scanning and monitoring device for rails in use includes a plurality of probe support inclined blocks 1, a plurality of single-coil eddy current detection probes 2, an array electronic switching on switch 3, a programmable logic The controller 4, the eddy current detector 5, the standard test piece 6, and the signal cable 7 are characterized in that: the end faces 11 of the plurality of probe support slant blocks 1 are arranged in a line and fixed closely; the plurality of single-coil eddy current detection probes 2 is fixed on the inclined plane 10 of a plurality of probe supporting inclined blocks 1 arranged in a line, and there are overlapping parts between the plurality of single-coil eddy current detection probes 2, that is, the edge part of one single-coil eddy current detecti...
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
Login to View More Abstract
The invention discloses a method and apparatus for eddy-based electronically-controlled scanning and monitoring. The apparatus comprises a plurality of probe support slant blocks, a plurality of single coil eddy detection probes, an array electronic switching conduction switch, a programmable logic controller, an eddy detection instrument, a standard detection piece, and a signal cable. On the basis of an electromagnet nondestructive detection principle, the plurality of single coil eddy detection probes are arranged in a line in a pushed domino arrangement mode and are fixed on a detection surface of a detected steel rail. Because of the utilization of an array electronic switching conduction switch technology, only the single-channel eddy detection instrument is needed to receive an eddy signal without the need of an expensive array eddy detection instrument, thereby substantially reducing the detection cost. Meanwhile, eddy detection coils employ a circular-bead square winding mode and the detection covering surfaces of the multiple eddy detection coils are intersected and superposed with each other, thereby eliminating the detection blind area. Therefore, the provided apparatus is suitable for in-use real-time monitoring work of steel rails like a railway rail and a sliding rail of a port crane and the like in the industries of railway, port, bridge, and building and the like.
Description
Technical field [0001] The invention relates to a non-destructive testing method and device, in particular to a method and device for eddy current electronically controlled scanning and monitoring of rails in use. Background technique [0002] Steel rail is the infrastructure of rail transit, and its pressure-bearing parts are prone to fatigue cracks during use. Regular non-destructive testing should be carried out to detect fatigue cracks in time to avoid major safety accidents that cause rail fracture due to crack expansion. Taking the detection of railway turnout rails as an example, the characteristics of turnout rails are that the cross-section width gradually narrows, and the pressure is uneven. The narrower the cross-section width, the greater the pressure. If it is not discovered in time, when the cross-section cracks further expand upwards and exceed the tread surface, a major safety accident such as rail fracture and train derailment will occur. At present, non-de...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/90G01N27/904G01N27/9093
Inventor 林俊明
Owner EDDYSUN (XIAMEN) ELECTRONICS CO LTD