Solar power supply wireless adaptive lift-off height oil pipeline crack detection device
A technology powered by solar energy and lift-off height, applied in the direction of use feedback control, material magnetic variables, etc., can solve problems such as poor battery life, unsuitable for oil pipeline crack detection, etc., achieve low cost, improve battery life, and high degree of automation Effect
Pending Publication Date: 2019-07-23
CHINA JILIANG UNIV
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For example, the patent application number is 201811165572.X, and the patent name is a fully automatic defect detection device based on low-frequency electromagnetic. It does not need to manually push the detection device. It has the characteristics of high degree of automation and fast detection speed. Oil Pipeline Crack Detection from Distance
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[0012] Such as figure 1 As shown, the solar-powered wireless self-adaptive lift-off height oil pipeline crack detection device consists of a solar cell (1), a microprocessor (2), a power amplification module (3), a magnetic yoke (4), an excitation coil (5), Hall element group (6), wireless communication module (7) and automatic lift-off height calibration device (8); the solar cell (1) is located above the microprocessor (2), and the power amplifier module (3) is located on the microprocessor On the right side of the device (2), the yoke (4), excitation coil (5) and Hall element group (6) are located under the power amplifier module (3), and the excitation coil (5) is wound on a material made of manganese-zinc-ferrite On the yoke (4) of the body, the Hall element group (6) is located under the yoke (4), the wireless communication module (7) is located under the microprocessor (2), and the height calibration device (8) is automatically lifted away. It is located on the left si...
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The invention relates to a solar power supply wireless adaptive lift-off height oil pipeline crack detection device comprising a solar cell, a microprocessor, a power amplification module, a magnet yoke, an exciting coil, a Hall element group, a wireless communication module, and an automatic lift-off height calibration device. A height sensor can detect the uneven degree of a surface and controlthe height of a lifting table, so that the lift-off height of the Hall element groups is kept invariable; meanwhile, the microprocessor generates a low-frequency sinusoidal signal, a magnetic field isgenerated in a free space after the signal passes through the exciting coil on the magnetic yoke; the magnetic field is changed due to a detect and thus a leakage magnetic field is generated; the Hall element group can detect the leakage magnetic field and transmits the signal to the microprocessor; the microprocessor processes data and acquires a detection result, and the microprocessor controlsa wireless communication module via SPI serial communication to achieve the real-time sending of the detection result. The cruising ability of the device is enhanced under the condition of ensuring the detection accuracy, and the device has the characteristics of high degree of automation, fast detection speed and high sensitivity.
Description
technical field [0001] The invention provides a wireless self-adaptive lift-off height oil pipeline crack detection device powered by solar energy, which belongs to the field of electromagnetic non-destructive detection. Background technique [0002] During the use of pressure equipment, because it is filled with flammable, explosive, highly toxic or corrosive media, it is subjected to high temperature and pressure for a long time, and defects such as corrosion pits and cracks may be formed. Major safety accidents caused by cracks or surface cracks occur from time to time, so it is of great significance to carry out early loss mechanism and rapid detection and diagnosis. [0003] For the detection of defects such as cracks, the existing non-destructive testing methods such as ray, ultrasonic and magnetic powder have their own shortcomings. The ray detection technology has a certain radiation risk, and the detection time is long and the detection cost is high. The ultrasonic ...
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Login to View More IPC IPC(8): G01N27/83H02J7/35G05D3/20
CPCG01N27/83G05D3/20H02J7/35
Inventor 张天虎沈常宇李光海
Owner CHINA JILIANG UNIV