PECT-1
Pulsed Eddy Current Tester
Pulse eddy current detection is a novel NDT technology, which is often used to detect the wall thickness reduction caused by corrosion and other reasons of pipes and vessels with coating (heat-insulation layer, anti-corrosion layer, etc.). The instrument based on pulsed eddy current technology can detect components of the equipment without stopping the machine or disassembling the coating. The instrument can work on ferromagnetic material, such as carbon steel, low alloy steel, etc., while it is also suitable for non-ferrous material, such as aluminum alloy, stainless steel, etc.
Product
Features
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Acquire metal thickness profile from pulsed eddy current signal
Based on Faraday's law of electromagnetic induction and Lenz's law, the intensity and attenuation rate of eddy current in metal objects are highly related to their thickness. For thicker metal, the attenuation rate of eddy current signal is slower, and vice versa. In practical applications, the relative thickness of the metal can be measured by applying a relatively strong magnetic pulse to the metal object to be measured, so as to evaluate the risk of thinning and corrosion in the area of interest.
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Convenient measurement and real-time analysis functions
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Pulsed eddy current is suitable for high lift and multi-layer pipeline structures, and can be tested without dismantling the pipeline coating;
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Strong lift-off tolerance with a maximum lift-off of 50mm;
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The maximum measuring depth can reach 80 mm, and capable of penetrating metal coating of up to 3 mm thickness;
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Complete system functions
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The instrument provides single measurement, fixed-time measurement and grid imaging modes;
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The measurement results can be obtained in real time with only one calibration;
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Grid imaging and data playback function, convenient for on site data analysis;
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Data saving on one click to provide complete measurement data;
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Convenient and intuitive interactive interface, operation buttons specially designed for 2k touch screen
Test
Performance
Non-ferrous material
For exposed non-ferrous metal sample, the maximum thickness that the instrument can measure is around 80 mm. The data in the right figure is collected and analysed by the system with aluminum alloy plate.
Ferrous material without coating
For exposed ferrous metal sample, the maximum thickness that the instrument can measure is around 30 mm. The data in the right figure is collected and analysed by the system with Q345 carbon steel plate.
Ferrous material with coating
For ferromagnetic samples with 3mm aluminum coating and 20mm heat-insulation layer, the maximum thickness that the instrument can measure is 25mm. The data in the right figure is collected and analysed by the system with aluminum alloy sheet, non-conductive heat-insulating material and Q345 carbon steel plate.
