| 单词 | shock excitation |
| 释义 | > as lemmasshock excitation shock excitation n. the excitation of natural oscillations in an electrical or mechanical system by a sudden impulse of energy from an external source. ΘΚΠ the world > movement > motion in specific manner > alternating or reciprocating motion > oscillation > [noun] > excitation of natural oscillations shock excitation1920 1909 Brit. Patent 6424/1909 1 The form of excitation employed is that originally suggested by Professor Wien and known as ‘shock excitation’, in which the energy accumulated in the excitation circuit is discharged in a manner that may be described as ‘explosive’ into a second oscillatory circuit. 1920 E. W. Stone Elem. Radiotelegr. iii. 54 Exciting a vibratory circuit into oscillation is variously termed impulse excitation, shock excitation, and whip-crack excitation. 1930 A. B. Wood Textbk. Sound 213 A single explosion impulse is often sufficient to set a resonator into vibration, thereby producing a musical note or a noise by shock excitation. 2020 T. J. Hixon et al. Preclinical Speech Sci. (ed. 3) ix. 357/1 Shock excitation qualifies as an impulse-like event, or one that is characterized by a large change in amplitude (in this case, pressure) over a very brief interval. < as lemmas |
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