| 单词 | turns ratio |
| 释义 | > as lemmasturns ratio turns ratio n. (also turn ratio) the ratio of the number of turns on the primary and secondary windings of a transformer (see transformer n. 2), which determines the ratio of the voltage change between them.Usually expressed with the larger number first, corresponding to the higher voltage. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > transformer > [noun] > ratio of turns turns ratio1913 1913 Gen. Electr. Rev. 16 288/2 The voltage ratio was very close to turn ratio. 1922 Radio News Dec. 1221 (advt.) ‘All-American’ Transformers. Perfected, first, from the stand-point of correct engineering, by proper turns ratio, impedance and shielding. 1976 J. D. Ryder & C. M. Thomson Electronic Circuits & Syst. xii. 286 A loudspeaker of 4 Ω can be made to appear as 400 Ω on the primary side if we use a transformer with the turns ratio a = √(400/ 4) =..10. 1976 A. J. Pansini Basic Electr. Power Transformers ii. 45 The primary coil sometimes has taps which permit changes in the turn ratio or ratio of transformation. < as lemmas |
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