Method for detecting underground steel pipe corrosion condition by ground artificial magnetization
An underground steel and artificial technology, applied in geophysical surveying, electromagnetic measuring devices, electric/magnetic exploration, etc., to achieve the effects of low equipment prices, wide range of applicable pipe diameters, and simple methods
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[0026] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples.
[0027] Basic principle of the present invention: the material basis of the artificial magnetization method to detect the corrosion status of underground steel pipes (or steel pipes) is that the steel pipes have extremely strong magnetism, and the magnetism is lost after being corroded. When an artificial magnetic field is applied to the steel pipe, the uncorroded part of the steel pipe will generate a magnetic field in the surrounding space under its magnetization, and its strength and distribution depend on the strength of the artificial magnetic field and the distribution of the uncorroded part of the steel pipe in the artificial magnetic field. It is closely related to the distribution of the corroded part in the artificial magnetic f...
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