| 释义 |
phasor Electr.|ˈfeɪzər|
[f. phase + -or, after vector.]
A line whose length and direction represent a complex electrical quantity with no spatial extension. Freq. attrib.
1944Proc. IRE XXXII. 181/3 The instantaneous angular velocity of the voltage phasor may, in a special case of particular interest, be of the form ωt= ω + Δω cos Ωt, where Ω is the angular velocity of the frequency deviation. 1958W. D. Cockrell Industr. Electronics Hand-bk. i. 249 The term ‘phasor’ is in the process of replacing the time-honored term ‘vector’. 1962F. de la C. Chard Power Syst. Engin. i. 4 Phasor impedance can be shown on phasor diagrams and treated mathematically as a true complex quantity, but it differs from phasor voltage and current in the important respect that its value is invariable with time. 1973M. R. Ward Electr. Engin. Princ. iii. 47. The phasors are drawn of length proportional to the r.m.s. 1975R. F. W. Coates Mod. Communication Syst. i. 2 The phasor conveys the essential information regarding amplitude and phase of a fixed frequency sinusoid. |