Results 21 to 30 of about 1,501,574 (297)
Noise characterization of an atomic magnetometer at sub-millihertz frequencies [PDF]
, 2015 Noise measurements have been carried out in the LISA bandwidth (0.1 mHz to 100 mHz) to characterize an all-optical atomic magnetometer based on nonlinear magneto-optical rotation.
Budker, D. +5 more
core +3 more sources
FET input voltage amplifier for low frequency noise measurements
Metrology and Measurement Systems, 2020 The paper presents a low noise voltage FET amplifier for low frequency noise measurements. It was built using two stages of an op amp transimpedance amplifier.
Krzysztof Achtenberg +2 more
doaj +1 more source
Sprites in low‐frequency radio noise [PDF]
Geophysical Research Letters, 2013 Low‐frequency radio noise is the electromagnetic background radiation which is compared here to the luminosity of 39 sprites recorded with a low‐light video camera. It is found that the sprite luminosities coincide with ∼10–30 ms long sudden enhancements of the electromagnetic background radiation ∼6–8 μV m−1Hz−1/2(∼6–9 dB) with a relative maximum near
Füllekrug, M. +4 more
openaire +1 more source
Active noise cancellation of low frequency noise propagating in a duct
International Journal of Environmental Health Engineering, 2012 Aims: The object is to find a manner of reduction primary noise from a source by an electro acoustic device that cancels unwanted sound by generating an anti sound (anti noise) of equal amplitude and an opposite phase is described as an active noise ...
Farhad Forouharmajd +3 more
doaj +1 more source
Low Frequency Noise Annoyance Assesment by Low Frequency Noise Rating (LFNR) Curves
Journal of Environmental Conservation Engineering, 1983 Over recent years, it has become apparent that low frequency noise annoyance is more widespread than originally believed. Annoyance has occurred where the emitted noise is unbalanced towards the low frequencies even though the dB(A) level has been low.
N. Broner, H.G. Leventhall
openaire +2 more sources
Squeezing in the audio gravitational wave detection band [PDF]
, 2004 We demonstrate the generation of broad-band continuous-wave optical squeezing down to 200Hz using a below threshold optical parametric oscillator (OPO). The squeezed state phase was controlled using a noise locking technique.
A. Rüdiger +11 more
core +3 more sources
Low Frequency Noise of Tantalum Capacitors
Active and Passive Electronic Components, 2002 A low frequency noise and charge carriers transport mechanism analysis was performed on tantalum capacitors in order to characterise their quality and reliability.
J. Sikula +6 more
doaj +1 more source
Low-Frequency Noise Phenomena in Switched MOSFETs [PDF]
, 2007 In small-area MOSFETs widely used in analog and RF circuit design, low-frequency (LF) noise behavior is increasingly dominated by single-electron effects.
Hoekstra, Eric +7 more
core +3 more sources
Low Frequency Noise in Tantalum Capacitors
Active and Passive Electronic Components, 1987 Noise has been measured in a number of biased solid tantalum capacitors at frequencies down to 0.01 Hz. The noise current was found to have a 1/f power spectrum, and the amplitude varied with the bias voltage with a law in the range 1st to 4th power ...
D. T. Smith
doaj +1 more source
Noise and Health, 2011 To investigate the contribution of body vibrations to the vibratory sensation induced by high-level, complex low-frequency noise, we conducted two experiments.
Yukio Takahashi
doaj +1 more source