-
1 thermocouple group
Техника: термопара -
2 термопара
1) Engineering: couple, heating element, thermal converter, thermal couple, thermal cross, thermocouple converter, thermocouple element, thermocouple group, thermocouple junction, thermocouple probe, thermoelectric device, thermoelement2) Chemistry: pyod3) Railway term: thermal plug, thermo-electric couple4) Telecommunications: thermal junction, thermocouple contact, thermoelectric junction, thermojunction5) Textile: thermo-couple6) Electronics: thermocouple7) Oil: temperature plug, thermoelectric couple8) Metrology: thermopile9) Mechanics: cutter/workpiece thermocouple, thermo couple, tool/workpiece thermocouple10) Drilling: pyrometer couple11) Aviation medicine: thermocouple-sensing element12) oil&gas: thermocouple (кипиа)13) Combustion gas turbines: bimetal thermometer -
3 TGC
2) Медицина: контроль роста опухоли (tumor growth control), time gain compensation3) Военный термин: theater ground command5) Шутливое выражение: The Gizzard Clan6) Сокращение: Trunk Group Cluster / Communications, transmit gain control7) Университет: The Guidance Center8) Вычислительная техника: Terminal Group Controller9) Фирменный знак: The Greenwood Company, The Guild Central, Torq Gard Camco10) Деловая лексика: The Golden Compass11) Программное обеспечение: Text Game Compiler -
4 TGC
1. thermocouple gage control - проверка калибровки термопар;2. total groove contact - полный контакт иглы со стенками канавки записи;3. transmit gain control - регулировка усиления при передаче;4. travel group charter - чартерный рейс для перевозки туристической группы -
5 Le Chatelier, Henri Louis
SUBJECT AREA: Metallurgy[br]b. 8 November 1850 Paris, Franced. 17 September 1926 Miribel-les-Echelle, France[br]French inventor of the rhodium—platinum thermocouple and the first practical optical pyrometer, and pioneer of physical metallurgy.[br]The son of a distinguished engineer, Le Chatelier entered the Ecole Polytechnique in 1869: after graduating in the Faculty of Mines, he was appointed Professor at the Ecole Supérieure des Mines in 1877. After assisting Deville with the purification of bauxite in unsuccessful attempts to obtain aluminium in useful quantities, Le Chatelier's work covered a wide range of topics and he gave much attention to the driving forces of chemical reactions. Between 1879 and 1882 he studied the mechanisms of explosions in mines, and his doctorate in 1882 was concerned with the chemistry and properties of hydraulic cements. The dehydration of such materials was studied by thermal analysis and dilatometry. Accurate temperature measurement was crucial and his work on the stability of thermocouples, begun in 1886, soon established the superiority of rhodium-platinum alloys for high-temperature measurement. The most stable combination, pure platinum coupled with a 10 per cent rhodium platinum positive limb, became known as Le Chatelier couple and was in general use throughout the industrial world until c. 1922. For applications where thermocouples could not be used, Le Chatelier also developed the first practical optical pyrometer. From hydraulic cements he moved on to refractory and other ceramic materials which were also studied by thermal analysis and dilatometry. By 1888 he was systematically applying such techniques to metals and alloys. Le Chatelier, together with Osmond, Worth, Genet and Charpy, was a leading member of that group of French investigators who established the new science of physical metallurgy between 1888 and 1900. Le Chatelier was determining the recalescence points in steels in 1888 and was among the first to study intermetallic compounds in a systematic manner. To facilitate such work he introduced the inverted microscope, upon which metallographers still depend for the routine examination of polished and etched metallurgical specimens under incident light. The principle of mobile equilibrium, developed independently by Le Chatelier in 1885 and F.Braun in 1886, stated that if one parameter in an equilibrium situation changed, the equilibrium point of the system would move in a direction which tended to reduce the effect of this change. This provided a useful qualitative working tool for the experimentalists, and was soon used with great effect by Haber in his work on the synthesis of ammonia.[br]Principal Honours and DistinctionsGrand Officier de la Légion d'honneur. Honorary Member of the Institute of Metals 1912. Iron and Steel Institute Bessemer Medal.Further ReadingF.Le Chatelier, 1969, Henri Le Chatelier.C.K.Burgess and H.L.Le Chatelier, The Measurement of High Temperature.ASDBiographical history of technology > Le Chatelier, Henri Louis
См. также в других словарях:
platinum group — ▪ chemical element group Introduction six metals, in order of increasing atomic weight, ruthenium (Ru), rhodium (Rh), palladium (Pd), osmium (Os), iridium (Ir), and … Universalium
Cortical cooling — Neuroscientists generate various studies to help explain many of the complex connections and functions of the brain. Most studies utilize animal models that have varying degrees of comparison to the human brain; for example, small rodents are… … Wikipedia
Electromotive force — (emf, mathcal{E}) is a term used to characterize electrical devices, such as voltaic cells, thermoelectric devices, electrical generators and transformers, and even resistors. For a given device, if an electric charge Q passes through that device … Wikipedia
Electronic engineering — is a discipline dealing with the behavior and effects of electrons (as in electron tubes and transistors) and with electronic devices, systems, or equipment.The term now also covers a large part of electrical engineering degree courses as studied … Wikipedia
rhodium — /roh dee euhm/, n. Chem. a silvery white metallic element of the platinum family, forming salts that give rose colored solutions: used to electroplate microscopes and instrument parts to prevent corrosion. Symbol: Rh; at. wt.: 102.905; at. no.:… … Universalium
Iridium — (pronEng|ɪˈrɪdiəm) is a chemical element that has the symbol Ir and atomic number 77. A very hard, brittle, silvery white transition metal of the platinum family, iridium is the second densest element and is the most corrosion resistant metal,… … Wikipedia
instrumentation — /in streuh men tay sheuhn/, n. 1. the arranging of music for instruments, esp. for an orchestra. 2. the list of instruments for which a composition is scored. 3. the use of, or work done by, instruments. 4. instrumental agency; instrumentality. 5 … Universalium
Aldol reaction — The aldol reaction is a powerful means of forming carbon–carbon bonds in organic chemistry.[1][2][3] Discovered independently by … Wikipedia
Electrical engineering — Electrical engineering, sometimes referred to as electrical and electronic engineering, is a field of engineering that deals with the study and application of electricity, electronics and electromagnetism. The field first became an identifiable… … Wikipedia
Cupronickel — or copper nickel or cupernickel is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. Cupronickel is highly resistant to corrosion in seawater, because its electrode potential is adjusted to be neutral … Wikipedia
Batteryless radio — Radio receivers were originally operated by battery. The term batteryless radio was initially used for the radio receivers which could be used directly by AC mains supply (mains radio).It was invented on April 8, 1925 in Canada by Edward S.… … Wikipedia
