Far Field Low Frequency Eddy Current Flaw Detector For Water Wall Tube Heat Exchange Tube

Compared with conventional eddy current, magnetic flux leakage and ultrasonic nondestructive testing, far field eddy current nondestructive testing has the following advantages: the surface of the tested material does not need to be cleaned; The probe is not in contact with the surface of the material, and the change of the gap between the outer diameter of the probe and the inner diameter of the material has little influence on the detection result. The sensitivity of detecting the corrosion pit on the inner surface and the outer surface of the material is the same. It has very high sensitivity for the detection of uniform thinning, gradual thinning and off-wear thinning. Whether the detection speed of the probe is uniform has no effect on the detection result. The gas and liquid medium in the material have no influence on the detection results. The testing equipment is small in size and light in weight, which is convenient for flexible application in the field. The detection data can also be stored for long-distance detection.
558H far-field low-frequency eddy current flaw detector is a new generation of eddy current non-destructive testing equipment, which adopts the most advanced DSP and FPGA digital electronic technology, far-field eddy current technology and microprocessor technology, and can effectively detect the inner and outer wall defects of ferromagnetic metal pipes in real time. It is not affected by probe removal, skin effect, electrical conductivity and permeability inequality.