单词 | angle of lead |
释义 | > as lemmasangle of lead angle of lead n. the fraction of a complete cycle, multiplied by 360 degrees or 2π radians, by which one oscillation is in advance of another; that by which a sinusoidal current leads ahead the associated sinusoidal voltage; also called phase lead. ΚΠ 1846 B. L. Vulliamy On Constr. Dead Escapem. for Clocks 31 The pallets lead an equal angle to one another by the action of the wheel on each pallet, by only altering the angle of lead of one of the pallets, as originally drawn. 1908 Proc. Royal Soc. A 80 339 The phase difference..can be reduced to zero and can even be reversed in sign until from an angle of ‘lag’ it becomes an angle of ‘lead’. 2003 E. N. Ganic & T. H. Hicks McGraw-Hill's Engin. Compan. xvi. 23 The angle of lead or lag (the phase angle or the initial angle) is measured from the point x = 0 to the nearest zero value of the sine wave. < as lemmas |
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