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Ringing signals (ut)
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
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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Reflections, английский
Out-of-control reflections can hurt your image; controlled ones can enrich it. tips: keep the subject in full sun, the reflecting surface, such as water, in shade. reflections on water are most pronounced when the lens is at a low angle. most mirrors add a greenish cast to the image. normal mirrors add a "ghost reflection" to the main reflection; use a first surface mirror for critical images.
Transducer, английский
- A device that converts energy from one form to another, such as optical energy to electrical energy.
- Преобразователь, датчик, при?мник
- A device which converts power in one kind of system to power in another form, e.g., a loudspeaker which converts electric power to acoustic power.
- A device that converts one type of energy to another (e.g., water pressure to electricity, as in a speed recorder; or electrical to acoustic as in a loudspeaker).
- Первичный измерительный преобразователь, датчик
- A device that converts energy from one form to another, such as a microphone or speaker.
- An electrical device that converts a signal from one form of energy to another.
- Any device that is capable of converting energy from one form to another.
- (1) device that converts mechanical energy to electrical output or vice versa. (2) piezoelectric device that converts attributes of the stress-versus-strain field of an acoustic wave into an electrical signal of voltage versus time. sensor; probe. transducer, differential: piezoelectric twin-element or dual-pole transducer.
- Device by means of which energy can flow from one or more transmission systems or media to one or more other transmission systems or media; sensor or probe.4
- (1) device that converts mechanical energy to electrical output or vice versa. (2) piezoelectric device that converts attributes of the stress-strain field of an acoustic wave into an electrical signal of voltage versus time. sensor; probe.16 transducer, differential: piezoelectric twin-element or dual-pole transducer, the output poles of which are isolated from the case and are at a floating potential.16
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Encircling coil (mt, et), английский
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.
Cine-fluorography (rt), английский
Cine-radiography of images produced on a fluorescent screen.
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