Results 211 to 220 of about 1,363,061 (231)
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An ultralow noise preamplifier for low frequency noise measurements
Review of Scientific Instruments, 2009Low frequency noise measurements are among the most sensitive tools for the investigation of the quality and of the reliability of semiconductor devices. The sensitivity that can be obtained depends on the background noise of the low noise preamplifier coupled to the device under test (DUT) that, at very low frequencies, is dominated by flicker noise ...
CANNATA', GIANLUCA +2 more
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Low-Frequency Growth Noise [PDF]
Europhysics Letters (EPL), 1986 At the nucleation stage of phase transformation, the number of critical nuclei is slowly fluctuating, which should lead to a characteristic, electrically detectable, low-f noise. Observation of this noise, which has a well-defined cut-off would provide an internal kinetic test of classical nucleation models.
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Japanese Journal of Applied Physics, 1990
Low-frequency noise measurements were carried out on GaAs devices in the frequency and temperature ranges from 10 Hz to 100 kHz, and from 77 K to 300 K, respectively. The noise spectra are considered to be superpositions of generation-recombination noise components caused by traps.
Shiyuan Yang +2 more
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Low-frequency noise measurements were carried out on GaAs devices in the frequency and temperature ranges from 10 Hz to 100 kHz, and from 77 K to 300 K, respectively. The noise spectra are considered to be superpositions of generation-recombination noise components caused by traps.
Shiyuan Yang +2 more
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Radio and Electronic Engineer, 1971
To compare errors arising in a measuring instrument from drift and low frequency (1/f) noise, the behaviour of the latter in the time domain is calculated. The standard deviation is expressed in terms of the cut-off frequency and integration time of the instrument, and the frequency index of the noise, which can be measured at audio frequencies ...
R.J. Hawkins, G.G. Bloodworth
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To compare errors arising in a measuring instrument from drift and low frequency (1/f) noise, the behaviour of the latter in the time domain is calculated. The standard deviation is expressed in terms of the cut-off frequency and integration time of the instrument, and the frequency index of the noise, which can be measured at audio frequencies ...
R.J. Hawkins, G.G. Bloodworth
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Low-frequency noise thresholds
Journal of Sound and Vibration, 1969Abstract The absolute threshold of hearing for octave bands of noise with centre frequencies from 125 to 4 Hz has been determined. The results show that the noise threshold behaves in a similar fashion to the tone threshold, but below 32 Hz noise thresholds are more sensitive by a small but significant amount. A hypothesis is advanced that from about
W. Tempest, M.E. Bryan, N.S. Yeowart
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Very Low Frequency Noise at Brisbane [PDF]
Nature, 1962 MEASUREMENTS of the broad-band component of ionospherics in the 5 kc./s. region, ‘Very low frequency noise’, have been reported by Aarons, Ellis and Dowden1–3.
Brown H.E., Cairns G.G.
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Low frequency noise in MOSFETs
Physica E: Low-dimensional Systems and Nanostructures, 2003Abstract Low frequency noise in MOSFETs is believed to be dominated by the effect of traps near the silicon/silicon dioxide interface. Nanometer-scale transistors should exhibit very low trap populations, even zero in some cases, and this should significantly affect the noise properties of such transistors.
R.F.W Pease, T.A Kramer
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Low-Frequency Noise of a Ballistic Rectifier
IEEE Transactions on Nanotechnology, 2014A ballistic-electron transport-based semiconductor nanorectifier, also known as a ballistic rectifier, has been demonstrated to have an intrinsic zero threshold voltage. In this paper, we characterize its low-frequency noise properties and show that the zero-threshold property enables elimination of the flicker noise. As a potential terahertz detector,
Singh, Arun K. +2 more
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Sources and effects of low-frequency noise
The Journal of the Acoustical Society of America, 1996The sources of human exposure to low-frequency noise and its effects are reviewed. Low-frequency noise is common as background noise in urban environments, and as an emission from many artificial sources: road vehicles, aircraft, industrial machinery, artillery and mining explosions, and air movement machinery including wind turbines, compressors, and ...
R. F. Soames Job +2 more
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Journal of Applied Physics, 1970
Variance fluctuations in 1/f noise examined with apparatus capable of responding to zero frequency signals are found to have the same magnitude as those in band-limited 1/f noise signals. The distribution of variances in identical sample lengths is skewed to small values in the case of current noise in a carbon resistor and is symmetrical in the case ...
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Variance fluctuations in 1/f noise examined with apparatus capable of responding to zero frequency signals are found to have the same magnitude as those in band-limited 1/f noise signals. The distribution of variances in identical sample lengths is skewed to small values in the case of current noise in a carbon resistor and is symmetrical in the case ...
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