英语词汇“lecher wires”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

Used attributively (esp. in Lecher wires) and †in the possessive to designate a pair of parallel wires in which the frequency of a high-frequency electric oscillation may be measured by means of a sliding detector or conductor placed so as to bridge the wires, positions of maximum response or absorption being separated by a distance equal to half the wavelength of the oscillation.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > electronic instruments > [adjective] > relating to specific measuring device

Lecher wires1897

1897 London, Edinb. & Dublin Philos. Mag. 5th Ser. 44 202 In Lecher's arrangement..the wires are of equal diameter.

1902 Encycl. Brit. XXVIII. 59/2 Many problems of electric waves along wires can readily be investigated by a method due to Lecher, and known as Lecher's bridge.

1929 J. A. Ratcliffe Physical Princ. Wireless iii. 35 A pair of parallel wires is often used to guide the waves, instead of the single wire... This arrangement is known as the Lecher wire system.

1947 Jrnl. Inst. Electr. Engineers 94 953/2 The tuned circuit consisted of a pair of lecher rods, the output being fed through a resonant line to a fixed end~fed half-wave vertical aerial.

1962 W. B. Thompson Introd. Plasma Physics ii. 12 In arc discharges the electron density is 10¹¹−10¹² cm⁻³ and the plasma frequency ∼ 100 Mc/s, so the high-frequency signals were picked up on resonant Lecher wires, rectified by a crystal and detected by a galvanometer.

1968 Radio Communication Handbk. (ed. 4) xix. 12/2 Lecher lines..comprise a pair of taut parallel wires, spaced an inch or so apart to form an open wire transmission line, and a bridge to short circuit the wires which can be moved along the line as required.

单词	lecher wires
释义	> as lemmas Lecher wires Used attributively (esp. in Lecher wires) and †in the possessive to designate a pair of parallel wires in which the frequency of a high-frequency electric oscillation may be measured by means of a sliding detector or conductor placed so as to bridge the wires, positions of maximum response or absorption being separated by a distance equal to half the wavelength of the oscillation. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > electronic instruments > [adjective] > relating to specific measuring device Lecher wires1897 1897 London, Edinb. & Dublin Philos. Mag. 5th Ser. 44 202 In Lecher's arrangement..the wires are of equal diameter. 1902 Encycl. Brit. XXVIII. 59/2 Many problems of electric waves along wires can readily be investigated by a method due to Lecher, and known as Lecher's bridge. 1929 J. A. Ratcliffe Physical Princ. Wireless iii. 35 A pair of parallel wires is often used to guide the waves, instead of the single wire... This arrangement is known as the Lecher wire system. 1947 Jrnl. Inst. Electr. Engineers 94 953/2 The tuned circuit consisted of a pair of lecher rods, the output being fed through a resonant line to a fixed end~fed half-wave vertical aerial. 1962 W. B. Thompson Introd. Plasma Physics ii. 12 In arc discharges the electron density is 10¹¹−10¹² cm⁻³ and the plasma frequency ∼ 100 Mc/s, so the high-frequency signals were picked up on resonant Lecher wires, rectified by a crystal and detected by a galvanometer. 1968 Radio Communication Handbk. (ed. 4) xix. 12/2 Lecher lines..comprise a pair of taut parallel wires, spaced an inch or so apart to form an open wire transmission line, and a bridge to short circuit the wires which can be moved along the line as required. extracted from Lechern.² < as lemmas
随便看	pastromi pastromis pastry pastry bag pastry blender pastry board pastry brush pastry case pastry chef pastry cream pastry cutter pastry house pastry pan pastry puff pastry room pastry school pastry scraper pastry shop pastry slab pastry vendor pastry work pastry-cook pastry-deity pastry-making pastry-man

> as lemmas