1) strong penetration ability, detection depth of up to several meters;
2) high sensitivity, can be found with the diameter of about a few millimeters of the air gap reflective capacity of the reflector equivalent;
3) in the determination of the internal reflector of the orientation, size, shape and nature of the more accurate;
4) only one side of the object to be examined from the approach;
5) can immediately provide defective test results;
6) safe operation, lightweight equipment.
5. It can provide defect test results immediately;
6. It is safe to operate and lightweight.
The main drawbacks
1) to be carefully operated by experienced personnel;
② rough, irregular shape, small, thin or non-homogeneous materials difficult to check;
3) the defects found to be very accurate qualitative and quantitative characterization of the difficulties.