gyrator

gy·rate

G0329200 (jī′rāt′)intr.v. gy·rat·ed, gy·rat·ing, gy·rates 1. To revolve around a fixed point or axis.2. To move in a spiral or spirallike course. See Synonyms at turn.3. To oscillate or vary, especially in a repetitious pattern: Stock prices gyrated around last week's high.adj. Biology In rings; coiled or convoluted.

[Late Latin gȳrāre, gȳrāt-, from Latin gȳrus, circle; see gyre.]

gy′ra′tor n.

gyrator

(dʒaɪˈreɪtə) n (Electrical Engineering) an electronic circuit that inverts the impedance

Gyrator

gyrator

[′jī‚rād·ər] (electromagnetism) A waveguide component that uses a ferrite section to give zero phase shift for one direction of propagation and 180° phase shift for the other direction; in other words, it causes a reversal of signal polarity for one direction of propagation but not for the other direction. Also known as microwave gyrator.

Gyrator

a directional phase shifter, a microwave device. This device creates a half-wave phase change of electromagnetic waves propagating in opposite directions. Gyrators are used as a component in various microwave devices, such as gates, modulators, circulators, and switches. The operating principle of gyrators is based on the irreversible properties of magnetized ferrite; these properties cause rotations of polarization plane, phase shift, and so on. The simplest kind of gyrator consists of a circular radio waveguide that contains an appropriately dimensioned, magnetized ferrite rod (magnetized in a magnetic field of a previously determined intensity). A circular waveguide is coupled to a rectangular waveguide by matching transitions.

REFERENCES

Gurevich, A. G. Ferrity na sverkhvysokikh chastotakh. Moscow, 1960.
Lax, B., and K. Batton. Sverkhvysokochastotnye ferrity i ferrimagnetiki. Moscow, 1965. (Translated from English.)

B. E. LEVIN

gypsum

[jip´sum] native calcium sulfate, which when calcined becomes plaster of paris; used in making plaster casts for fractures and for taking dental impressions.

gyp·sum

(jip'sŭm), The natural hydrated form of calcium sulfate; a component of the stones, plasters, and investments used in dentistry. [L. fr. G. gypsos]

gyp·sum

(jip'sŭm) The natural hydrated form of calcium sulfate used in dentistry. [L. fr. G. gypsos]

gyp·sum

(jip'sŭm) Natural hydrated form of calcium sulfate; component of stones, plasters, and investments used in dentistry. [L. fr. G. gypsos]

单词	gyrator
释义	gyrator gy·rate G0329200 (jī′rāt′)intr.v. gy·rat·ed, gy·rat·ing, gy·rates 1. To revolve around a fixed point or axis.2. To move in a spiral or spirallike course. See Synonyms at turn.3. To oscillate or vary, especially in a repetitious pattern: Stock prices gyrated around last week's high.adj. Biology In rings; coiled or convoluted. [Late Latin gȳrāre, gȳrāt-, from Latin gȳrus, circle; see gyre.] gy′ra′tor n. gyrator (dʒaɪˈreɪtə) n (Electrical Engineering) an electronic circuit that inverts the impedance Gyrator gyrator [′jī‚rād·ər] (electromagnetism) A waveguide component that uses a ferrite section to give zero phase shift for one direction of propagation and 180° phase shift for the other direction; in other words, it causes a reversal of signal polarity for one direction of propagation but not for the other direction. Also known as microwave gyrator. Gyrator a directional phase shifter, a microwave device. This device creates a half-wave phase change of electromagnetic waves propagating in opposite directions. Gyrators are used as a component in various microwave devices, such as gates, modulators, circulators, and switches. The operating principle of gyrators is based on the irreversible properties of magnetized ferrite; these properties cause rotations of polarization plane, phase shift, and so on. The simplest kind of gyrator consists of a circular radio waveguide that contains an appropriately dimensioned, magnetized ferrite rod (magnetized in a magnetic field of a previously determined intensity). A circular waveguide is coupled to a rectangular waveguide by matching transitions. REFERENCES Gurevich, A. G. Ferrity na sverkhvysokikh chastotakh. Moscow, 1960. Lax, B., and K. Batton. Sverkhvysokochastotnye ferrity i ferrimagnetiki. Moscow, 1965. (Translated from English.) B. E. LEVIN gypsum gypsum [jip´sum] native calcium sulfate, which when calcined becomes plaster of paris; used in making plaster casts for fractures and for taking dental impressions. gyp·sum (jip'sŭm), The natural hydrated form of calcium sulfate; a component of the stones, plasters, and investments used in dentistry. [L. fr. G. gypsos] gyp·sum (jip'sŭm) The natural hydrated form of calcium sulfate used in dentistry. [L. fr. G. gypsos] gyp·sum (jip'sŭm) Natural hydrated form of calcium sulfate; component of stones, plasters, and investments used in dentistry. [L. fr. G. gypsos] ThesaurusSeegyrate
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