| 释义 |
gyrator|dʒaɪəˈreɪtə(r)|
[as if L. *gȳrātor, agent-n. f. gȳrāre to gyrate.]
1. He who or that which gyrates or whirls.
1836E. Howard R. Reefer xx, I shall call them the pulsating and the gyrating leg... Whilst you were admiring the undulating grace of the pulsator,..you would find the gyrator had stolen a march upon you. 1895H. Stopes in Athenæum 7 Sept. 325/3 Beautifully made [stone] axes, knives, gyrators. 1908Westm. Gaz. 15 Jan. 3/3 ‘It's called a diable... He belongs to the best Diabolo Club, and he's never heard it called anything else.’ Then he consulted the directions which had come with the box. The first of them began, ‘Place the gyrator on the ground.’
2. Electr. A passive circuit element which has two pairs of terminals and introduces a phase shift of 180 degrees for one direction of propagation but no phase shift for the reverse direction.
1948B. D. H. Tellegen in Philips Res. Rep. III. 87 Another such four-pole [network element], but violating the reciprocity relation, is described by v1 = -si2, v2 = si1... We shall denote such a four-pole by the name of ideal gyrator. 1952Bell Syst. Techn. Jrnl. XXXI. 1 The microwave gyrator has been realized by making use of the Faraday rotation in pieces of ferrite placed in the waveguide. Ibid. 3 Network synthesis today is based upon the existence of four basic circuit elements: the capacitor, the resistor, the inductor, and the ideal transformer... The introduction of a fifth circuit element, the gyrator, would lead to considerably improved solutions for many network problems. 1957Jrnl. Brit. Interplan. Soc. XVI. 241 The Hall gyrator..is a ferrite device using the Hall effect, which, used at high frequencies, can act as a radar isolator. 1959H. W. Katz Solid State Magnetic & Dielectric Devices iii. 115 A gyrator preceding a network terminal pair effectively interchanges voltage and current with a scale factor of R ohms. 1971R. Clay Nonlinear Networks & Systems ii. 55 If a capacitor is connected to a gyrator..the input port appears as an inductor. |
