Novel flux leakage sensor probe

A magnetic flux leakage sensor, a new type of technology, is applied in the direction of instruments, measuring magnetic variables, and material magnetic variables. It can solve the problems that the sensor probe has not been seen, and achieve the effects of strong defect resolution, compact structure, and stable work.

Inactive Publication Date: 2015-03-25
QINGDAO GUANDA TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the test of transmission lines, the detection of broken strands of the ferromagnetic steel core inside the aluminum stranded wire requires a new type of high-quality sensor probe, and the sensor probe of this structure has not yet been seen.

Method used

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  • Novel flux leakage sensor probe
  • Novel flux leakage sensor probe
  • Novel flux leakage sensor probe

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Embodiment Construction

[0021] The following will be further described in conjunction with the accompanying drawings, not to limit the scope of the present invention.

[0022] see Figure 1 to Figure 4 As shown, the present invention includes a housing 1 , a probe and a magnetic circuit structure contained in the housing 1 . The magnetic circuit structure is composed of permanent magnets 3, the permanent magnets 3 are fan-shaped structures, the central angle of the fan-shaped structures is 45°, and the number of the fan-shaped structures is 8 pieces. The magnetic circuit structure is cylindrical, and a cylindrical plastic inner pad 4 is arranged on the inner side of the magnetic circuit structure, and a cylindrical protective layer 2 is arranged on the outer side of the magnetic circuit structure, and the protective layer 2 is made of industrial pure Made of iron. The inner middle part of the protective layer 2 is provided with a circuit board clamping position 6, and a circuit board 7 is fixed on ...

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Abstract

The invention relates to a novel flux leakage sensor probe which comprises an outer shell, a probe body and a magnetic return circuit structure. The magnetic return circuit structure is composed of a permanent magnet, and a magnetic return circuit is cylindrical. A cylindrical plastic inner pad is arranged on the inner side of the magnetic return circuit structure, a cylindrical protection layer is arranged on the outer side of the magnetic return circuit structure, and a circuit board clamping position is located in the middle of the inner side of the protection layer. A circuit board is fixedly arranged at the circuit board clamping position, the circuit board is provided with a data line slot interface, and the probe body is connected with the data line slot interface through a data line. The novel flux leakage sensor probe is reasonable in structural design, advanced in process, reliable in performance, stable in working and capable of detecting the strand breakage condition of an internal ferromagnetic steel core in an aluminium conductor in a high quality mode in the detection process of power transmission lines.

Description

technical field [0001] The invention relates to an ultrasonic detector, in particular to a novel magnetic flux leakage sensor probe. Background technique [0002] At present, ultrasonic testing instruments are used in a wide range of fields, such as spark plug testing in the automotive industry, individual testing of safety components; composite material testing, immersion and scanning testing in the aviation industry; wheel and axle testing in railways; Weld inspection, multi-channel defect inspection and wall thickness inspection in power plants; casting inspection in metallurgical industry; rail, steel rod and steel pipe inspection in steel mills; complex applications in composite materials, such as composite materials, Detection of powder metallurgy, connecting joints, broken strands of transmission lines, material properties, etc. In the test of transmission lines, the detection of broken strands of the ferromagnetic steel core inside the aluminum stranded wire require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/07G01N27/82
Inventor 周君祥
Owner QINGDAO GUANDA TRADE
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