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Method and apparatus for detecting deposits having at least one ferromagnetic material in contact with or close to the outer wall of the tube
Method and apparatus for detecting deposits having at least one ferromagnetic material in contact with or close to the outer wall of the tube
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机译:用于检测沉积物的方法和设备,该沉积物具有至少一种铁磁材料,该沉积物与管的外壁接触或接近
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摘要
The present invention relates to a method of detecting deposits comprising at least one ferromagnetic material, such as nickel, magnetite or the like, on or near the external wall of a tube, notable in that it comprises at least the following steps of: moving a magnetized source inside the tube in the lengthwise direction using an electric motor, measuring the strength of the current in the electric motor, and determining the position and/or the thickness and/or the volume of the said deposit as a function of the variations in the strength of the current measured in the electric motor. Another subject of the invention is a device implementing the said method.
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