| 单词 | wave-meter |
| 释义 | > as lemmaswave-meter wave-meter n. a device for measuring the wavelength or frequency of radiofrequency waves. ΘΚΠ society > communication > telecommunication > radio communications > radio equipment > [noun] > wave-meter wave-meter1904 the world > matter > physics > electromagnetic radiation > electricity > electric current > alternating current > [noun] > instrument determining wave-form wave-meter1904 1904 Electrician 1 Jan. 408/2 (caption) General view of wave meter. 1905 Athenæum 27 May 662/2 Prof. Fleming's direct-reading cymometer or wave-meter, for measuring the length of the waves used in wireless telegraphy. 1925 P. J. Risdon Crystal Receivers & Circuits 51 The aerial inductance may be found by the use of a spark coil and wave-meter. 1945 Electronic Engin. 17 720/1 The absorption wavemeter can be greatly improved by the addition of a valve which will provide the necessary energy to maintain the tuned circuit in continuous oscillation. 1979 P. Hawker Guide to Amat. Radio iv. 63/2 A convenient method of calibrating the wavemeter is to use a communication receiver. < as lemmas |
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