Manganin

[ mang-guh-nin ]

Trademark.

1. a brand name for an alloy of copper, manganese, and nickel, having various electrical applications.

Manganin

/ ˈmæŋɡənɪn /

noun

1. an alloy of copper containing manganese (13–18 per cent) and nickel (1–4 per cent): it has a high electrical resistance that does not vary greatly with temperature and is used in resistors

Example Sentences

German silver, having a high specific resistance and a low temperature coefficient, has been used for electrical resistance coils, and these qualities are possessed in a still greater degree in manganin, which contains manganese in place of zinc, its composition being 84% of copper, 12 of manganese and 4 of nickel.

From Project Gutenberg

One well-known alloy of copper, manganese and nickel, now called manganin, which was brought to the notice of electricians by the careful investigations made at the Berlin Physikalisch-Technische Reichsanstalt, is characterized by having a zero temperature coefficient at or about a certain temperature in the neighbourhood of 15� C. Hence within a certain range of temperature on either side of this critical value the resistivity of manganin is hardly affected at all by temperature.

From Project Gutenberg

It appears, however, that in order that manganin may remain constant in resistivity when used in the manufacture of a resistance coil, it is necessary that the alloy should be aged by heating it to a temperature of 140� C. for ten hours; and to prevent subsequent changes in resistivity, solders containing zinc must be avoided, and a silver solder containing 75% of silver employed in soldering the manganin wire to its connexions.

From Project Gutenberg

A comparison made in 1892 and 1894 of all the manganin wire copies of the ohm made at the Reichsanstalt in Berlin, showed that these standards had remained constant for two years to within one or two parts in 100,000.

From Project Gutenberg

A standard of resistance for use in a laboratory now generally consists of a wire of manganin or platinum-silver carefully insulated and enclosed in a brass case.

From Project Gutenberg