单词 | dygogram |
释义 | dygogram|ˈdaɪgəʊgræm| [See quot. 1862.] A diagram consisting of a curve showing the variation of the horizontal component of the force of magnetism exerted upon the ship's compass-needle by the iron in the ship's composition while making a circuit or curve.
1862A. Smith Deviat. Ship's Compass App. ii. 151 Graphic representations of the amount and direction of the forces which act on the magnetic needle. These representations are designated by the general name of ‘Dygo⁓gram’, a contraction for ‘Dynamo-gonio-gram’ or ‘Force and angle diagram’. 1881Maxwell Electr. & Magn. II. 73 Such a curve, by means of which the direction and magnitude of the force on the compass is given in terms of the magnetic course of the ship, is called a Dygogram. |

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