释义 |
weber1 Electr.|ˈveɪbə(r), ˈwiːbə(r)| Also † veber. [After the German physicist Wilhelm Weber (1804–91).] a. A name (now disused) for the unit of electrical quantity (now coulomb) and the unit of electrical current (now ampère).
1872Telegr. Jrnl. I. 11/1 The current through a b will then be equal to one British Association unit of current, or one veber per second. 1874[see farad 2]. 1876Preece & Sivewright Telegraphy 3 The unit quantity of electricity in general use has been called a weber. 1879G. B. Prescott Sp. Telephone 469 In the veber current and the electro-motive force, we have the data for comparing the work of these machines. 1881Rep. Brit. Assoc. 425 The current produced by a Volt acting through an Ohm..is called a Weber. 1881S. P. Thompson in Jrnl. Soc. Arts XXX. 32/2 To tear away a single gramme of hydrogen from the oxygen with which it is combined requires no less than 95,050 webers (‘coulombs’) to flow through. 1883J. Swinburne Pract. Electr. Units 28 The coulomb has taken the place of the weber as unit of quantity, and the ampère is used instead of the weber-per-second as unit of current. †b. A unit of magnetic pole strength, equal to the pole strength that produces a field of 1 oersted (‘gauss’) at 1 centimetre. Obs.
1882R. Clausius in Phil. Mag. XIII. 394, I would take leave to propose that for it [sc. the unit of magnetism] the name ‘weber’ be introduced. 1892G. F. Barker Physics iv. iii. 645 The unit pole just now defined..is called a weber and the unit field which it produces at unit distance is called a gauss. c. The M.K.S. unit of magnetic flux (now incorporated in the International System of Units), equal to 100 million maxwells; one volt-second. Symbol Wb.
1891Trans. Amer. Inst. Electr. Engineers VIII. 542 We can start by defining 108 lines of force as the unit of induction and call it, say, a weber. 1895Rep. Brit. Assoc. Adv. Sci. 196 The Committee..recommend for tentative adoption the following terminology: ― 1. That as a unit for magnetic field, a hundred million ‘c.g.s. lines’ be called a weber. 1935Proc. Nat. Acad. Sci. XXI. 579 Various International Electrical Congresses..and since then, the i.e.c., have adopted, by successive steps, the well-known series of nine practical electromagnetic units (ohm, volt, ampere, farad, coulomb, joule, watt, henry and weber). 1963G. Troup Masers & Lasers (ed. 2) v. 67 For magnetic dipole transitions, {vb}pmn{vb} is of the order of a Bohr magneton (1·2 × 10—29 weber metre). 1971I. G. Gass et al. Understanding Earth iv. 71/2 The [magnetic] field varies over the Earth from 7 × 10—5 to 2·5 × 10—5 weber metre—2 (Wb m—2). |