| 单词 | quenched spark |
| 释义 | > as lemmasquenched spark quenched spark n. (now chiefly historical) a spark in a radio transmitter that is extinguished mechanically soon after it begins. ΘΚΠ society > communication > telecommunication > radio communications > radio equipment > [noun] > radio set > spark or gap quenched spark1910 quenched gap1914 1910 G. W. Pierce Princ. Wireless Telegr. xxiii. 269 The quenched spark is..economical in transmitting energy, and is favorable to sharp tuning. 1962 J. H. Reyner & P. J. Reyner Radio Communication vii. 294 Owing to the rapid cooling a very high spark frequency may be used, and quenched spark sets operated with a spark frequency of 1,500 per second or more. 1971 Syracuse (N.Y.) Herald-Amer. 28 Mar. 3/5 My first ship had a quenched spark transmitter and a 10 kw arc for long wave. 1995 Nucl. Instruments & Methods in Physics Res. A. 360 520/2 A quenched spark (streamer) mode suggests itself for the high freon concentration. < as lemmas |
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