platinum-platinum rhodium thermocouple

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• Thermocouple — plugged to a multimeter displaying room temperature in °C. A thermocouple is a device consisting of two different conductors (usually metal alloys) that produce a voltage proportional to a temperature difference between either end of the pair of… …   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

• 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

• thermocouple — /therr meuh kup euhl/, n. Physics. a device that consists of the junction of two dissimilar metallic conductors, as copper and iron, in which an electromotive force is induced when the conductors are maintained at different temperatures, the… …   Universalium

• thermocouple — A device for measuring slight changes in temperature, consisting of two wires of different metals, one wire being kept at a certain low temperature, the other in the tissue or other material whose temperature is to be measured; a thermoelectric… …   Medical dictionary

• Rhodium — Rh redirects here. For other uses, see rh (disambiguation) Rhodium (pronEng|ˈroʊdiəm) is a chemical element with the symbol Rh and atomic number 45. A rare, silvery white hard transition metal and a member of the platinum group, rhodium is found… …   Wikipedia

• Le Chatelier , Henri Louis — (1850–1936) French chemist Le Chatelier was born in Paris, the son of the inspector general of mines for France. He himself began studying mining engineering, before becoming professor of chemistry at the School of Mines in 1877. He later became… …   Scientists

• Le Châtelier, Henry-Louis — born Oct. 8, 1850, Paris, France died Sept. 17, 1936, Miribel les Échelles French chemist. A professor at the Collège de France and the Sorbonne, he is best known for the principle of Le Châtelier, which makes it possible to predict the effect… …   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

• History of electrochemistry — Electrochemistry, a branch of chemistry, went through several changes during its evolution from early principles related to magnets in the early 16th and 17th centuries, to complex theories involving conductivity, electrical charge and… …   Wikipedia