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Yoke magnetization (mt)
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
A longitudinal magnetic field induced in a part, or in an area of a part, by means of an external electromagnet shaped like a yoke.
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Longitudinal, английский
- Generally parallel to the direction of the wood fibres.
- Продольный
- Generally, parallel to the direction of the wood fibers.
- Продольный, относящийся к долготе, стрингер
- [1] extending in the lengthwise direction, as distinguished from transverse. [2] said of any fore-and-aft structural member, such as a frame or bulkhead.
- Running lengthwise.
- Along the length of a structure.
- Direction parallel to the long axis of an object and perpendicular to its radius — for example, down the length of a cylinder. compare circumferential; radial; transverse. lot tolerance percent defective (ltpd): the poorest quality, in percent defective, individual lot that is acceptable in a sampling plan. ltpd is the percent defective that will be accepted by the sampling plan at most 10 percent of the time. with such a plan, the producer agrees to supply just enough nonconforming product such the consumer will accept the lot using the agreed to sampling plan and acceptable quality level. compare acceptable quality level. lumen (lm): si photometric unit of luminous flux, weighted according to the photopic vision response. one lumen equals the light emitted by one candela (cd) point source into one steradian (sr) solid angle (1 lm = 1 cd/sr).
Electromagnet, английский
- Электромагнит
- A soft iron core surrounded by a coil of wire. the iron core becomes magnetic when an electric current flows through the wire.
- Ferromagnetic core surrounded by a coil of wire that temporarily becomes a magnet when an electric current flows through the wire. electromagnetic acoustic transducer (emat): transmitting transducer based on the force exerted on a current flowing in a magnetic field. a receiving transducer that detects the current produced by moving a conductor in a magnetic field. glossary 19.9 electromagnetic testing (et): nondestructive test method for materials, including magnetic materials, that uses electromagnetic currents, either alternating or direct current, to yield information about the test object. in nondestructive testing, the term electromagnetic testing is not applied to methods such as radiologic and thermographic testing, in which the interrogating energy is a form of electromagnetic radiation. electronvolt (ev): kinetic energy acquired by an electron in passing through a potential difference of 1 v in vacuum; 1 ev = ~1.60 j. the electronvolt is commonly used to express the energy of x-rays. emat: see electromagnetic acoustic transducer.
- Ferromagnetic core surrounded by a coil of wire that temporarily becomes a magnet when an electric current flows through the wire.4
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Radiation source (rt), английский
A machine or a material emitting, or capable of emitting, ionizing radiation.
Field, bipolar (mt), английский
A longitudinal field within a part having two poles.
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