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Pipeline magnetic flux leakage detection system and data acquisition device and method

A technology for data acquisition and magnetic flux leakage detection, applied in the direction of material magnetic variables, etc., can solve the problems of weak anti-electromagnetic interference, low integration, poor shock resistance of connectors, etc., achieve good mechanical stability and reliability, and simplify the interface. The effect of convenient design and post-maintenance

Active Publication Date: 2017-05-31
CHINA SPECIAL EQUIP INSPECTION & RES INST
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  • Claims
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AI Technical Summary

Problems solved by technology

Therefore there are multiple hidden dangers in the above-mentioned prior art
For example, due to the large number of industrial computer interfaces (most of which are useless to the system) and the large size, the solution of using the industrial computer computer results in a large system volume and poor seismic performance, which may not be used in small-diameter magnetic flux leakage detection devices. Applicable; the scheme using multiple circuit boards has low integration, and due to the connector, the system stability and reliability are poor, the seismic performance is poor, and the anti-electromagnetic interference ability is also weak
The electronic hard disk is relatively large in size, and the shock resistance of the connector between the electronic hard disk and the circuit board is relatively poor

Method used

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  • Pipeline magnetic flux leakage detection system and data acquisition device and method
  • Pipeline magnetic flux leakage detection system and data acquisition device and method

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the present disclosure clearer, the present disclosure will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0038] The pipeline magnetic flux leakage detection equipment proposed in the present disclosure can be used to detect defects in pipelines such as oil and gas made of ferromagnetic materials.

[0039] like figure 1 As shown, a pipeline magnetic flux leakage detection system shown in an exemplary embodiment of the present disclosure includes: a magnetization device, a sensing element and a data acquisition device;

[0040] Wherein, the magnetization device is used to magnetize the local pipeline wall to be detected, and form a magnetic field loop with the currently magnetized local pipeline wall to be detected;

[0041] The sensing element is used to detect magnetic and / or non-magnetic signals.

[0042] The sensing ...

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Abstract

The invention provides a pipeline magnetic flux leakage detection system and a data acquisition device and method. The pipeline magnetic flux leakage detection system comprises a magnetizing device, a sensing member and the data acquisition device, wherein the sensing element is used for detecting a magnetic signal which is a magnetic flux leakage signal of a magnetic field; the data acquisition device comprises an ARM core module, a storage medium, an FPGA, an AD conversion device, a USB / FIFO conversion device and a power supply management module; the ARM core module is used for storing data acquired by the FPGA to the storage medium; the AD conversion device is used for performing analog-to-digital conversion on the magnetic signal received from the sensing member; the FPGA is used for transmitting the acquired magnetic data to the ARM core module through the USB / FIFIO conversion device according to the magnetic data acquired by the magnetic signal through compression; and the USB / FIFIO conversion device is used for data transmission between the ARM core module and the FPGA.

Description

technical field [0001] The present disclosure relates to the technical field of data acquisition, in particular to a pipeline magnetic flux leakage detection system and method, and a data acquisition device. Background technique [0002] In the prior art, the magnetic flux leakage detection equipment for oil and gas pipelines usually chooses the solution of industrial computer plus peripheral expansion circuit for system control and data acquisition, processing and storage. In other existing technologies, the system is also divided into multiple circuit boards and components according to functions, such as the main control board, acquisition board, storage board, electronic hard disk, etc., and then multiple circuit boards are connected into a whole through connectors. For system control and data acquisition, processing and storage. [0003] In the application, the magnetic flux leakage detection equipment carrying the data acquisition device moves at high speed in oil and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/82
CPCG01N27/82
Inventor 马义来何仁洋陈金忠李春雨何仁碧
Owner CHINA SPECIAL EQUIP INSPECTION & RES INST
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