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Thermal conductivity vacuum gauge
| Глоссарий по тестированию |
Instrument that operates on principle that, as gas molecules are removed from a system, the amount of heat transfer by conduction is reduced. this relationship is used to indicate absolute pressure.
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Instrument, английский
- A term used to describe a sensor (or sensors), the associated transducer(s), and the data read-out or recording device.
- (измерительный) прибор
- One of many terms for a light, heard mostly in the theater. see: lights.
- A piece of equipment or a tool the doctor had a box of surgical instruments.
- A term of extensive application among tools and weapons; but it is here introduced as an official conveyance of some right, or the record of some fact.
- A legal document that records an act or agreement and provides the evidence of that act or agreement. instruments include contracts, notes, and leases (e.g. a debt instrument).
- Навести инструмент ~ of application точка приложения (напр, силы) ~ of certainty тройная засечка ~ of compound curvature точка сопряжения двух кривых ~ of concentration замыкающий створ ~ of contraflexure точка перегиба ~ of curvature начало или конец кривой (в плане) ~ of cusp точка сопряжения обратных кривых ~ of grade intersection точка перелома в продольном профиле ~ of high stress concentration точка концентрации высоких [значительных] напряжений ~ of inflection точка перегиба ~ of intersection вершина угла (на плане трассы) ~ of lateral restraint точка бокового закрепления [защемления] (сжатого или изгибаемого элемента) ~ of support точка опоры ~ of switch конец остряка ~ of tangency начало или конец кривой (в плане) ~ of the maximum bending moment точка максимального изгибающего момента ~ of vertical curve начало вертикальной кривой ~ of vertical intersection вершина угла вертикальной кривой ~ of vertical tangent начало или конец вертикальной кривой ~ of zero moment точка нулевого момента (на эпюре моментов)
- Прибор, инструмент
- To tag the source code in order to measure the amount of time spent in each area.
- Инструмент
Conduction, английский
- Conduction
- The direct transfer of heat energy through a material.
- The transfer of energy through a solid without motion of the conducting solid as a whole. steady-state conduction calls if the temperature at each point is independent of time. unsteady or transient conduction situations changes with time (time dependant)
- The process of passing heat, sound or nervous impulses from one part of the body to another
- Проводимость; электрическая проводимость; электропроводность
- The transfer of heat energy through matter.
- The transfer of heat energy in materials (usually solids) via molecular scale vibrations and collision interactions.
- Heat transfer to another body or within a body by direct contact.
- Heat transfer occurring when more energetic particles collide with — and thus impart some of their heat energy to — adjacent less energetic (slower moving) particles. this action is passed on from one atom (or free electron) to the next in the direction of cooler regions. thus, heat always flows from a warmer to a cooler region.1 conductivity, thermal (k): material property defining the relative capability to carry heat by conduction in a static temperature gradient. conductivity varies slightly with temperature in solids and liquids and with temperature and pressure in gases. it is high for metals (copper has a k of 380 w·m–1·k–1) and low for gases and porous materials (concrete has a k of 1.0 w·m–1·k–1).3 682 infrared and thermal testing
- Heat transfer occurring when more energetic particles collide with — and thus impart some of their heat energy to — adjacent less energetic (slower moving) particles. this action is passed on from one atom (or free electron) to the next in the direction of cooler regions. thus, heat always flows from a warmer to a cooler region. compare convection; radiation. conductivity, electrical (?): ability of material to transmit electric current, measured in siemens per meter. reciprocal or inverse of resistivity ?: conductivity, thermal (k): material property defining the relative ability to carry heat by conduction in a static temperature gradient. conductivity varies slightly with temperature in solids and liquids and with temperature and pressure in gases. it is high for metals (copper has a k of 380 w·m–1·k–1) and low for gases and porous materials (concrete has a k of 1.0 w·m–1·k–1). compare capacity, thermal.
Relationship, английский
- Отношение: соотношение; связь; взаимоотношение; взаимосвязь
- Отношение, степень родства
- A way in which someone or something is connected to another the incidence of the disease has a close relationship to the environment. he became withdrawn and broke off all relationships with his family.
- Зависимость, соотношение
- A connection between objects.
- A logical connection between entities.
- A smartart graphic layout type that includes layouts designed to illustrate connections.
- An association established between common fields (columns) in two tables. a relationship can be one-to-one, many-to-many, or one-to-many.
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Thermal disorption, английский
Release of gases or vapors from the interior wall of a vacuum system by heat (o’hanlon 1989).
Tesla coil, английский
High voltage spark coil (several thousand volts), which identifies leaks in nonconductive vessels through ionization and avalanche multiplication (the townsend discharge).
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