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Pinhole porosity
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
Porosity, in either castings or metal formed by electrodeposition, resulting from numerous small holes distributed throughout the metal.
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Pinhole, английский
- A tiny opening or aperture, often used to estimate any potential improvement in visual acuity that might be achieved by refractive correction or other optical assistance.
- Микроотверстие; микроканал; прокол
- A very small hole in hosiery or fabric.
Pinhole (rt), английский
A through-hole of small diameter in a sheet of material opaque to radiation.
Pinhole camera, английский
Pinhole camera model, английский
Модель камеры с точечной диафрагмой
Pinhole i., английский
Пространственный фильтр
Pinhole lens, английский
- A fixed focal length lens, for viewing through a very small aperture, used in discrete surveillance situations. the lens normally has no focusing control but offers a choice of iris functions.
- Линзы используются в основном в скрытых камерах, когда линзы должны оставаться вне поля зрения.
- This is a type of lens with a very small aperture. normally used for covert applications, where it can easily hide behind or within another object.
- Объективы которые применяются в основном для скрытого применения, где камера должна оставаться невидимой.
Pinhole lens., английский
A fixed focal length lens, for viewing through a very small aperture, used in discrete
Pinhole mask target mount, английский
Изготовление мишени с точечными отверстиями
Pinhole pattern, английский
Лауэграмма текстуры
Pinholes, английский
Very small holes; sometimes found as a type of porosity in casting because of micro shrinkage or gas evolution during solidification.
Porosity, английский
- Porosité
- The ratio of pore volume to total volume of a filter medium expressed as a percent.
- A ratio, usually expressed as a percentage, of the volume of voids in a material to the total volume of the material, including the voids. the voids permit gases or liquids to pass through the material.
- The ratio of the pore volume of a rock to its bulk volume, usually expressed in percent of the bulk volume.
- Пористость, пустотность
- The ratio of the volume of air or void contained within the boundaries of a material to the total volume (solid matter plus air or void) expressed as a percentage.
- The ratio of the volume of voids in a rock or soil to its total
- The ratio of the aggregate volume of pore spaces in rock or soil to its total volume, usually stated as a percent.
- Random pits or holes in the object.
- Discontinuity in metal resulting from the creation or coalescence of gas. very small pores open to the surface are called pinholes.2,5
- Discontinuity in metal resulting from the creation or coalescence of gas. very small pores open to the surface are called pinholes.
- The condition of being porous (such as a rock formation).
Porosity, английский
Porosity coefficient, английский
Porosity sample, английский
A sample for which the porosity or ratio of the volume of all pore space to the total bulk volume of the sample may be determined.
Porosity shrinkage, английский
Porosity [rock], английский
The ratio between the volume of pores in a rock and the total volume of the rock, i.e., the capacity of rock to contain a fluid. it is expressed as a percent of rock volume.
Electrodeposition, английский
- Electrolytic process in which a metal is deposited at the cathode from a solution of its ions.
- Electrolytic process in which a metal is deposited at the cathode from a
Distributed, английский
- Распредел
- Распределенный; рассредоточенный
- Сотри t i ng en v i ronmen t распределенные вычисления
- New treasury issues in dealers` hands are said to be distributed.
Throughout, английский
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Psigg, английский
Pounds per square inch; gauged air pressure gauged by a regulator.
Barium plaster (rt), английский
Plaster containing a high proportion of barium compounds, used for radiation protection purposes.
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