Encircling Probes are designed for testing cylindrical objects made of non-magnetic materials, like steel bars. As the name implies, they generally “encircle” the material to be tested and inspect from the outer diameter. OKOndt’s Encircling probes can be used in an absolute mode or differential mode when paired with a 2nd coil. They are used for sorting (alloy or hardness), as well as in flaw detection applications such as weld defects, cracks, etc. in rods and tubing.
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