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单词 electrostatic
释义

electrostaticadj.

Brit. /ᵻˌlɛktrə(ʊ)ˈstatɪk/, U.S. /əˌlɛktrəˈstædɪk/, /iˌlɛktrəˈstædɪk/
Origin: Formed within English, by compounding; perhaps modelled on a French lexical item. Etymons: electro- comb. form, static adj.
Etymology: < electro- comb. form + static adj., after either French électrostatique (see electrostatics n.) or electrostatics n. Compare earlier electrodynamic adj.
Physics.
1. Of or relating to stationary electric charges, as opposed to electric currents; designating an unvarying electric field, such as a stationary charge produces; (of devices, equipment, etc.) utilizing or involving such a field.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > [adjective] > relating to static electricity
latent1789
electrostatic1844
electrostatical1846
heterostatic1867
static1956
1844 Philos. Trans. (Royal Soc.) 134 43 Tension or electro-static effects precede, and are independent of, the completion of the voltaic circuit.
1867 Athenæum No. 2084. 428 Self-acting electro-static accumulator.
1880 Jrnl. Soc. Telegr. Engineers 9 430 The part that electro-static induction plays during the establishment of a current in a wire.
1888 Proc. Physical Soc. 10 116 (title) On an electrostatic field produced by varying magnetic induction.
1912 Metall. & Chem. Engin. 10 173/2 (caption) Cross-section through one of the electrostatic precipitation chambers.
1920 Whittaker's Electr. Engin. Pocket-bk. (ed. 4) 651 The precipitation of dust..by means of the electrostatic field..has only been applied to industrial purposes within the last six years.
1954 T. Vickerstaff Physical Chem. Dyeing (ed. 2) vii. 199 Electrostatic effects due to the surface charge of the cellulose play an important part in opposing the adsorption of anionic dyes.
1969 Times 11 Aug. 4/7 The natural daily fluctuation in the earth's electrostatic field..could be detected by the mice.
1994 MacUser Aug. 105/3 Electrostatic devices apply an electrical charge to precise areas of the paper, which attracts liquid toner to those areas.
1999 Printing World 7 June 18/4 The charged droplets are directed to the printing surface by another electrostatic field.
2003 M. Kraak & F. Ormeling Cartography (ed. 2) iv. 61/2 The speed of the scanner, as well as that of output equipment such as laser and electrostatic plotters, offers advantages.
2. Designating a unit of measurement in a system based on the force between two electric charges and an arbitrary assignment of value to the permittivity of free space. Contrasted with electromagnetic adj. 2.
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1853 W. Thomson in London, Edinb., & Dublin Philos. Mag. 4th Ser. 5 403 Results..enable us to determine the numerical relation between electro-statical and electro-magnetic units.]
1858 T. Graham & H. Watts Elem. Chem. (ed. 2) II. Suppl. 507 It remained, therefore, to determine the relation between the electromagnetic unit and the electrostatic unit.
1886 Philos. Trans. 1885 (Royal Soc.) 176 315 Taking Dr. Macfarlane's value for the electric strength of air.., viz., 75, as the intensity in electrostatic measure in C.G.S. units of the greatest force which a fairly thick layer of air can bear, [etc.].
1897 A. G. Webster Theory Electr. & Magn. ii. ix. 367 We may, when dealing with electrical quantities, assume that the dimensions of the electrical inductivity are zero. This gives the electrostatic system of units.
1935 C. J. Smith Intermediate Physics (ed. 2) v. xxxv. 583 The positive unit, defined above, is then taken to be the unit of charge in the electrostatic system of units.
1963 H. G. Jerrard & D. B. McNeill Dict. Sci. Units 12 In recent years the prefix stat has sometimes been used to denote electrostatic units, thus 1 stat volt = 300 practical volts, 1 stat ampere = (1/3) × 10−9 ampere.
1994 J. Mehra Beat of Different Drum iii. 50 He had to measure the ratio of electrostatic and electromagnetic units, which he knew was related to the speed of light in a vacuum.

Compounds

electrostatic generator n. an apparatus for producing high-voltage electric charges in which the charges are generated by friction or induction, and then transferred mechanically to an insulated electrode to build up the voltage.
ΚΠ
1885 U.S. Patent 324,009 4/1 By utilizing such an electrostatic generator.., I am enabled to form a gas-lighting instrument of great efficiency.
1959 Times 3 June 8/3 (caption) The six million volt Van de Graaf high voltage electrostatic generator.
1962 Gloss. Terms Nucl. Sci. (B.S.I.) 6 The electrostatic generator (first designed by Van de Graaff), in which a conveyor belt is used to charge an insulated electrode to the desired potential.
2004 B. Bunch & A. Hellemans Hist. Sci. & Technol. 259/1 1768..Jesse Ramsden..invents an electrostatic generator that can be used to charge Leiden jars.
electrostatic lens n. an arrangement of electrodes at different potentials, used to focus an electron beam electrostatically.
ΚΠ
1935 Rep. Progress Physics 2 287 Scherzer has calculated the focal length of a short electrostatic lens.
1953 S. W. Amos & D. C. Birkinshaw Television Engin. I. x. 237 A practical electrostatic lens of the type used in cathode-ray tubes has an optical equivalent containing several convex and concave elements.
2000 J. McFall tr. K. Wille Physics of Particle Accelerators i. 8 The electrodes act as electrostatic lenses which focus the beam to a certain extent.
electrostatic precipitator n. = precipitator n. 2b(b).
ΚΠ
1908 H. K. Moore & J. T. Quinn U.S. Patent 326,414 4/2 The whole process..requires the employment of a Cottrell or electrostatic precipitator.
1970 R. W. Thomas Iron & Steel ii. 14/1 The remaining dust is removed by passing through electrostatic precipitators.
2007 Renewable & Sustainable Energy Rev. 11 708 The..plant uses additional pollution-control equipment viz. flue gas desulphurisation system, NOx control system and electrostatic precipitator.
Categories »
electrostatic precipitation n. see precipitation n. 9.

Derivatives

eˌlectroˈstatical adj. = 1.
ΘΚΠ
the world > matter > physics > electromagnetic radiation > electricity > [adjective] > relating to static electricity
latent1789
electrostatic1844
electrostatical1846
heterostatic1867
static1956
1846 W. Thomson in Cambr. & Dublin Math. Jrnl. 1 83 Mr. Faraday's researches on electrostatical induction..are published in a memoir.
1939 Sci. Monthly Feb. 112/2 There could have been meaning to motions of charges under the mutual influence of electrostatical forces.
1955 R. B. Braithwaite Sci. Explan. xi. 361 The hypothesis that the electrostatical law is an inverse-square law.
2007 Appl. Catalysis B. 70 407/2 The suspension was stirred at room temperature for 2 h or 24 h, during which electrostatical interactions and exchange reactions were expected to occur.
This entry has been updated (OED Third Edition, June 2008; most recently modified version published online March 2022).
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adj.1844
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