英语词汇“plasma frequency”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

plasma frequency n. Physics the natural resonant frequency of a plasma oscillation, equal to the minimum frequency of electromagnetic waves that can travel through the plasma without attenuation (the value is approximately 8920√n Hz, where n is the number of free electrons per cubic centimetre).

ΘΚΠ

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plasma frequency1949

1929 Physical Rev. 33 198 Thus the lower frequency limit for long waves coincides with the plasma-electron frequency.]

1949 Physical Rev. 75 1852/1 For a typical density of 10¹² electrons per cm³, the plasma frequency is about 10¹⁰ c.p.s.

1964 D. B. Newman Space Vehicle Electronics iv. 225 Above the plasma frequency the plasma has dielectric properties... Well below the plasma frequency, the plasma acts like a conductor.

1980 Sci. Amer. Sept. 186/2 If the frequency of the radio signal is higher than the plasma frequency, the signal continues to travel through the ion layer.

单词	plasma frequency
释义	> as lemmas plasma frequency plasma frequency n. Physics the natural resonant frequency of a plasma oscillation, equal to the minimum frequency of electromagnetic waves that can travel through the plasma without attenuation (the value is approximately 8920√n Hz, where n is the number of free electrons per cubic centimetre). ΘΚΠ the world > matter > physics > atomic physics > ion > plasma or ionized gas > [noun] > oscillation of electrons in > frequency of plasma frequency1949 1929 Physical Rev. 33 198 Thus the lower frequency limit for long waves coincides with the plasma-electron frequency.] 1949 Physical Rev. 75 1852/1 For a typical density of 10¹² electrons per cm³, the plasma frequency is about 10¹⁰ c.p.s. 1964 D. B. Newman Space Vehicle Electronics iv. 225 Above the plasma frequency the plasma has dielectric properties... Well below the plasma frequency, the plasma acts like a conductor. 1980 Sci. Amer. Sept. 186/2 If the frequency of the radio signal is higher than the plasma frequency, the signal continues to travel through the ion layer. extracted from plasman. < as lemmas
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