astaticadj.
/əˈstatɪk/ Electromagnetism.
Having no tendency to remain in a fixed position. astatic needle n. one so situated or arranged as to be unaffected by the earth's magnetism.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > transmission of electricity, conduction > [adjective] > unaffected by magnetism
astatic1827
the world > matter > physics > electromagnetic radiation > electricity > electric current > [noun] > measurement of galvanic currents > apparatus for > component of
astatic needle1866
shunt box1878
search coil1888
1827 J. Cumming Man. Electro Dynamics i. 13 The moveable conductors..are astatic; that is, they are so constructed as not to be affected by the magnetic influence of the earth.
1832 Nat. Philos. (Libr. Useful Knowl.) II. Electro-magnetism xi. §193 The moveable conductor..may be rendered astatic or independent of terrestrial influence.
1866 R. M. Ferguson Electricity 252 An upright galvanometer..with the astatic needles loaded.
1940 Chambers's Techn. Dict. 56/1 Astatic galvanometer, a moving-magnet galvanometer in which the magnets form an astatic system.
1962 T. Axson in G. A. T. Burdett Automatic Control Handbk. vi. §10 This fundamental characteristic of not tending to any one position has given rise to the name ‘Astatic’ voltage relay.
This entry has not yet been fully updated (first published 1885; most recently modified version published online March 2021).
<
adj.1827