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Modularization excitation detection device

A detection device, a modular technology, applied in the direction of material magnetic variables, can solve problems such as waste, and achieve the effect of good magnetization effect and easy post-processing.

Inactive Publication Date: 2008-12-24
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in the current engineering application, there is no more suitable method, which basically can only be observed with the naked eye. The current cables are basically replaced after a certain number of years, which is a lot of waste.

Method used

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Embodiment Construction

[0026] A modular excitation detection device, including at least two single-section exciters 12 and at least one of the single-section exciters 12 is provided with a traction bracket 11, and a single-section exciter 12 is provided with an adjacent single-section exciter. 12 Rotate the connecting piece 25 of the connection. The number of single-section exciters mentioned above can be determined according to the shape and size of the object to be measured, and the number of single-section exciters can be in the range of 2 to 10 sections, specifically 2, 6, 10, 3 or 7 sections can be selected.

[0027] In this embodiment, a hole 26 is provided on the connecting piece 25, a connecting bolt 14 is arranged in the hole 26, an adjusting groove 27 is arranged on the connecting piece 25, an adjusting bolt 23 is arranged in the adjusting groove 27, and the connection The member 25 is fixed on the first magnet cover 24 or the second magnet cover 29 through the adjusting bolt 23 .

[0028...

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Abstract

The invention discloses a modularization excitation detection device, at least comprising two single-section exciters; furthermore, a traction bracket is arranged on at least one single-section exciter; the single-section exciter is provided with a connecting part used for the rotary connection of adjacent single-section exciters. The connecting part is provided with a hole which is internally provided with a connecting bolt; the connecting part is provided with an adjusting trough which is internally provided with an adjusting bolt; furthermore, the connecting part is fixed on a first magnet cover or a second magnet cover by the adjusting bolt. By changing the number of the accessed exciters, the width of each single-section exciter and the angle between the exciters, the cables of different diameters can be magnetized and detected; the smart and changeable modularization exciter can carry out the excitation and detection of other tested parts with complex shapes such as I-steel and angle steel, etc.; the magnetic-leakage signal of the tested part can be conveniently and effectively detected by the methods of permanent magnet excitation and Hall detection.

Description

technical field [0001] The invention relates to a device for exciting and detecting cables of long-span cable-stayed bridges and some other complex-shaped measured objects, in particular to a modular excitation detection device. Background technique [0002] Steel cables are widely used in elevators, cranes and various constructions, and are one of the most commonly used load-bearing structures in engineering. In large-scale infrastructure such as cable-stayed bridges and suspension bridges, steel cables bear most of the weight of these buildings, which has a great impact on building safety. If there is a problem with the structural health of the cable, the normal use of the building will be affected at the slightest, and it will pose a great threat to people's lives and properties. With the economic and social development of the world, there are more and more large buildings of various kinds. Under such circumstances, the monitoring of the structural health of steel cable...

Claims

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Application Information

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IPC IPC(8): G01N27/83
Inventor 王兴松谢奇徐丰羽
Owner SOUTHEAST UNIV
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