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单词 harmonic generator
释义

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harmonic generator
c. Of or relating to harmonics (sense A. 2b), as harmonic distortion non-linear distortion of a wave-form in which harmonics of the original frequencies are introduced into it; harmonic generator a device that generates and combines harmonics of one or more sinusoidal oscillations to produce a complex wave-form; harmonic interference interference caused by the reception of harmonics of a transmitted signal of some other frequency; harmonic selective signalling (see quot.).
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society > communication > telecommunication > radio communications > [noun] > signal > interference
cross-talk1887
static1905
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statics1912
click1914
jam1914
grinder1922
hash1923
mush1924
echo1928
image1928
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harmonic interference1929
second channel1932
the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [noun] > device generating signal > device generating or combining harmonics
harmonic generator1929
the world > matter > physics > electromagnetic radiation > electronics > electronic phenomena > signal > [noun] > unwanted part of signal > distortion > types of
overmodulation1927
harmonic distortion1929
amplitude distortion1931
intermodulation1931
cross-modulation1933
1929 K. Henney Princ. Radio xvii. 450 We determined the percentage of harmonic distortion that occurred in an amplifier when it worked over a curved characteristic.
1930 Terms & Def. Telegr. & Teleph. (B.S.I.) 21 Harmonic selective signalling, signalling a number of stations on one circuit by means of alternating or pulsating currents of different frequencies, each individual station being tuned to one frequency only. A calling station can call any selected station independently of the others by employing the frequency particular to the selected station.
1930 Proc. IRE 18 31 If a receiver with poorly designed selective circuits is subjected to relatively high local field intensities one of the radio-frequency tubes may be overloaded and may then function as a modulator or harmonic generator.
1930 Proc. IRE 18 31 Complaints of harmonic interference are, at times, received by the operators of broadcast stations which can be traced directly to deficiencies in the design of the receivers employed.
1931 Trans. Amer. Inst. Electr. Engineers 50 811/1 The vacuum-tube harmonic generators of present practise are fundamentally amplifiers operated under conditions of input voltage and grid bias.
1962 A. Nisbett Technique Sound Studio 249 Harmonic distortion is most easily caused by flattening of peaks in the waveform.
1962 A. Nisbett Technique Sound Studio 249 1% harmonic distortion is not usually noticeable.
extracted from harmonicadj.n.
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更新时间:2024/12/25 10:16:38