Testing electronic equipment for power frequency noise

1963 ◽  
Vol 2 (4) ◽  
pp. 254
Keyword(s):  
Electronic Equipment ◽  
Frequency Noise ◽  
Power Frequency

scholarly journals Using Windowed Interpolation Method to Suppress Power Frequency Noise of Vibration Signal

2021 ◽  
Vol 2095 (1) ◽  
pp. 012057
Author(s):  
Xiaotao Zhang
Keyword(s):  
Numerical Simulation ◽  
Noise Suppression ◽  
Interpolation Method ◽  
Engineering Application ◽  
Vibration Signal ◽  
Simulation Method ◽  
Window Function ◽  
Frequency Noise ◽  
Rectangular Window ◽  
Power Frequency

Abstract Power frequency noise interference is widespread. In order to suppress power frequency noise coupled into vibration signal, windowed interpolating method was studied. Firstly, three typical window functions were compared, including rectangular window, Hanning window and six-term cosine window. Secondly, the numerical simulation method was used to analyze the influence of window function on the interpolation results of power frequency noise, finding that different window function should be chose when the spectrum spacing between power frequency noise and useful components of vibration signal is different. Finally, the windowed interpolation method was applied to actual engineering vibration signal to suppress its power frequency noise, with the result that the interpolation result of vibration signal is the most accurate with Hanning window. Numerical simulation and engineering application show that the windowed interpolation method is effective for power frequency noise suppression.

Decrease in Sub-harmonics Frequency Noise Induced by Rotor Eccentric Motion and its Induction Currents between Parallel Stator Circuits

2013 ◽  
Vol 133 (10) ◽  
pp. 995-1002 ◽  
Author(s):  
Masanori Arata ◽  
Motoyasu Mochizuki ◽  
Takashi Araki ◽  
Takashi Hanai ◽  
Masakatsu Matsubara
Keyword(s):  
Frequency Noise ◽  
Eccentric Motion

An Approach for Practical Use of Common-Mode Noise Reduction Technique for In-Vehicle Electronic Equipment

2010 ◽  
Vol E93-B (7) ◽  
pp. 1788-1796 ◽  
Author(s):  
Takanori UNO ◽  
Kouji ICHIKAWA ◽  
Yuichi MABUCHI ◽  
Atsushi NAKAMURA ◽  
Yuji OKAZAKI ◽  
...  
Keyword(s):  
Noise Reduction ◽  
Reduction Technique ◽  
Electronic Equipment ◽  
Common Mode ◽  
Noise Reduction Technique

Miniature Heat Pipes for Thermal Control of Radio-Electronic Equipment

2007 ◽  
Vol 38 (3) ◽  
pp. 245-258 ◽  
Author(s):  
Leonid L. Vasiliev ◽  
Andrei G. Kulakov ◽  
L. L. Vasiliev, Jr ◽  
Mikhail I. Rabetskii ◽  
A. A. Antukh
Keyword(s):  
Heat Pipes ◽  
Thermal Control ◽  
Electronic Equipment ◽  
Radio Electronic
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