Oersted


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Related to Oersted: Faraday, Oersted experiment

oersted

[′ər·stəd]
(electromagnetism)
The unit of magnetic field strength in the centimeter-gram-second electromagnetic system of units, equal to the field strength at the center of a plane circular coil of one turn and 1-centimeter radius, when there is a current of 1/(2π) abamp in the coil; 1 oersted corresponds to approximately 79.577 amperes per meter.

Oersted

 

the unit of magnetic field intensity in the cgs system of units. Named in honor of H. C. Oersted, its symbol is Oe. One oersted is equal to the strength of a magnetic field produced at a distance of 2 cm from an infinitely long straight conductor of infinitesimal circular cross section carrying a current with a strength of 1 cgs unit (that is, 10 amperes).

In technical practice, the oersted is gradually being replaced by the SI unit, ampere-turns per meter: 1 Oe = 103/(4π) ampereturns/m = 79.5775 ampere-turns/m.

Oersted

Pronounced "erst-ed." The measurement of magnetic energy. The higher the Oe rating in a material, the more current is required to change its magnetic polarity. Named after the Danish scientist, Hans Cristian Oersted (1777-1851), it is used, for example, to measure the coercivity point on magnetic media. See coercivity.
References in periodicals archive ?
Oersted was appointed professor of physics at the University of Copenhagen, and in July 1820 he made his greatest discovery: Electromagnetism.
Feynman was later awarded the Oersted Medal (Danish: Orsted Medaljen) of which he, fully rightly, was very proud.
Oersted and another famous professor at the University of Copenhagen: The philologist and politician Johan Nicolai Madvig (1804-1886).
Oersted did, Madvig wanted to modernize the Danish educational system, especially the teaching and the syllabuses of the high schools and the university had to be changed considerably (Krarup 1955, Petersen 1993, Christensen [5] and [6] 2009).
As expected, sales in the core business, magnetic stripes, signature panels and tipping foils for credit cards, experienced a solid increase for the quarter -- a result of the previously announced roll out of the higher oersted product.
The Company began to see a slowness in magnetic stripe sales in the fourth quarter of 1998, which, as anticipated, continued into the first quarter of 1999, as transaction card customers liquidated existing inventory in anticipation of an industry-wide transition to a higher oersted product by mid-1999.
This decline was due to transaction card customers liquidating existing inventory before making an industry-wide transition to a higher oersted product by mid-1999.
In security products, we anticipate continued growth as we further integrate Northern Bank Note into the Company, and in our transaction card markets as we will be a leading provider of the higher oersted magnetic stripe product.
Media operating performance was aided by rapid product transitions to high performance 1600 Oersted (Oe) media.