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单词 antinode
释义

antinoden.

/ˈæntɪnəʊd/
Etymology: < anti- prefix1 1b + node n. 6.
A point or line of maximum disturbance in a vibrating body, a region of maximum amplitude between nodes: for spec. applications see quots.
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the world > matter > physics > mechanics > types of motion > [noun] > vibration or oscillation > surface or point of rest > point of maximum disturbance
antinode1882
1882 J. D. Everett Vibratory Motion & Sound v. 51 Comparing together the four positions of the string..points A, C, and A1 remain permanently at rest, and the points B and D midway between them undergo the largest displacement... The points of permanent rest, A, C, and A1 are called nodes and the points of maximum displacement, B and D, antinodes.
1889 Cent. Dict. Antinode, a point of a vibrating string where the amplitude of vibration is greatest.
1910 Hawkins' Electr. Dict. 14/2 Anti-nodes, the points in wave motion which vibrate through the greatest amplitude, half-way between the points at rest, called nodes.
1926 Brit. Standard Gloss. Terms Electr. Engin. (Brit. Engin. Standards Assoc.) i. 199 Antinode, in a system which has a non-uniform distribution of R.M.S. current or voltage, any point at which the R.M.S. value is at its maximum is called an antinode of current or of voltage respectively.
1930 Engineering 29 Aug. 255/2 Measurement of wavelength by noting successive current antinodes along the wires.
1959 Chambers's Encycl. VIII. 554/1 These points are called nodes. At the intermediate points..the ether particles oscillate with maximum amplitude; these points are called antinodes.
This entry has not yet been fully updated (first published 1972; most recently modified version published online November 2010).
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