单词 | slide-wire |
释义 | > as lemmasslide-wire slide-wire n. Brit. /ˈslʌɪdwʌɪə/ , U.S. /ˈslaɪdˌwaɪ(ə)r/ a resistance wire along which an electrical contact slides in a Wheatstone bridge or similar device.ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > resistance > [noun] > movable contact slider1872 sliding contact1872 slide-wire1885 1885 J. Dredge Electr. Illumination II. i. 53 The Slide-Wire, or Metre Bridge..is a modification of the bridge due to Kirchoff, and is especially useful for the measurement of low resistances. 1902 Encycl. Brit. XXVI. 501/1 In the rare cases in which it is necessary to employ a long slide-wire..the calibration is best effected by comparison with a standard, such as a Thomson-Varley slide-box. 1902 Encycl. Brit. XXVI. 501/1 In all work of precision the slide-wire is supplemented by auxiliary resistances by which the scale may be indefinitely extended. 1905 G. F. Goodchild & C. F. Tweney Technol. & Sci. Dict. 682/2 Slide Wire, the straight wire which furnishes the two variable resistances in a Wheatstone Bridge of the straight form known as a Slide Wire Bridge. 1922 R. Glazebrook Dict. Appl. Physics II. 714/2 The first bridge to employ a slide wire was devised by Fleeming Jenkin in 1862 and was used to intercompare the standard coils made for the British Association Committee on Electrical Standards. 1964 Oceanogr. & Marine Biol. 2 359 The depth element is a Bourdon tube coupled to a slide-wire potentiometer. 1969 A. Brodgesell in B. G. Lipták Instrument Engineers' Handbk. I. ix. 942 Potentiometric displacement sensors consist of a slide wire and wiper. The slide wire is powered by a constant voltage representing full scale travel. < as lemmas |
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