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Single-phase alternating current
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
This term refers to a simple current, alternating in direction. commercial single-phase current follows a sine wave. such a current requires only two conductors for its circuit. most common commercial frequencies are 25,50 and 60 cycles per second.
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Alternating, английский
- Current, synchronous на переменном токе, синхронный
- Current, volt напряжение переменного тока в вольтах
- Flemish bond a brickwork pattern which is produced by laying alternate
- Переменный; знакопеременный; альтернативный
- Знакопеременный (о силе, напряжении)`, чередующийся
Commercial, английский
Коммерческий
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Indication (mt), английский
This term refers to any magnetically held magnetic particle pattern on the surface of a part being tested.
Magnetic discontinuity (mt), английский
This refers to a break in the magnetic uniformity of the part – a sudden change in permeability. a magnetic discontinuity may not be related to any actual physical break in the metal, but it may produce a magnetic particle indication.
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