21. |
The Power Spectrum of a Narrow Band Noise Passed through a Nonlinear Impedance Element |
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Journal of Applied Physics,
Volume 22,
Issue 9,
1951,
Page 1211-1213
John L. McLucas,
Richard C. Raymond,
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摘要:
The power spectrum of the current flowing through a nonlinear impedance element excited by a narrow band of noise centered at 1.6 mc has been measured experimentally from the audio range through the sixth harmonic band. A noise having the spectral shape of an error function with a standard deviation of 3.8 kc was generated by passing the current from a photomultiplier tube through several tuned amplifier stages. The noise was applied through an attenuator of 50 ohms characteristic impedance to a type 1N34 crystal diode. The current flowing in the diode passed through attenuators of 50 ohms characteristic impedance to the spectrum analyzer. In the audio range, a conventional wave analyzer was used, and in the remaining ranges, a calibrated radio receiver was used to measure the spectral distribution of output power. The results are in qualitative agreement with the theory of Middleton. A possible reason for the poor agreement is the difficulty of expressing the diode characteristic in a simple form for the computations.
ISSN:0021-8979
DOI:10.1063/1.1700135
出版商:AIP
年代:1951
数据来源: AIP
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22. |
Optical Absorption of Barium Oxide with Excess Barium |
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Journal of Applied Physics,
Volume 22,
Issue 9,
1951,
Page 1214-1215
Evan O. Kane,
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ISSN:0021-8979
DOI:10.1063/1.1700137
出版商:AIP
年代:1951
数据来源: AIP
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23. |
Surface Tension of Liquid Metals |
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Journal of Applied Physics,
Volume 22,
Issue 9,
1951,
Page 1215-1216
N. R. Mukherjee,
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ISSN:0021-8979
DOI:10.1063/1.1700139
出版商:AIP
年代:1951
数据来源: AIP
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24. |
A Note on the Initial Excitation of Linear Systems |
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Journal of Applied Physics,
Volume 22,
Issue 9,
1951,
Page 1216-1217
L. A. Zadeh,
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ISSN:0021-8979
DOI:10.1063/1.1700141
出版商:AIP
年代:1951
数据来源: AIP
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25. |
Errata: Application of the Radiation from Fast Electron Beams |
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Journal of Applied Physics,
Volume 22,
Issue 9,
1951,
Page 1217-1217
H. Motz,
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ISSN:0021-8979
DOI:10.1063/1.1700144
出版商:AIP
年代:1951
数据来源: AIP
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