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Encircling coil (mt, et)
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
Coil(s) or coil assembly which surrounds) the part to be tested. coils of this type are also referred to as annular, circumferential, or feed-through coils.
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Circumferential, английский
Direction around the perimeter of a cylindrical surface. compare longitudinal; radial; transverse.
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Three-phase alternating current, английский
Commercial, electricity is commonly transmitted as three single phase currents, that is, three separate currents following separate sine curves, each at 60 cycles (or other frequency) per second, but with the peaks of their individual curves one-third of a cycle apart. at least three (sometimes four) conductors are required for three-phase alternating current.
Ringing signals (ut), английский
Closely spaced multiple signals can be caused by multiple reflections in a thin material or continued vibration of a transducer element.
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