Differential ultra low noise amplifier for low frequency noise measurements
Almost all low noise voltage preamplifier suitable for application in the field of Low Frequency Noise Measurements (either commercially available or proposed in the literature) are single ended input amplifiers.
Graziella Scandurra +2 more
doaj +3 more sources
A High-PSRR LDO with Low Noise and Ultra-Low Power Consumption [PDF]
High-performance low dropout regulator (LDO) chips are core components that provide clean power for high-precision sensors, radio frequency (RF) circuits, low noise amplifiers and other noise-sensitive circuits.
Nanxiang Guo +5 more
doaj +2 more sources
A novel pulse-current waveform circuit for low-energy consumption and low-noise transcranial magnetic stimulation [PDF]
IntroductionTranscranial magnetic stimulation (TMS) is widely used for the noninvasive activation of neurons in the human brain. It utilizes a pulsed magnetic field to induce electric pulses that act on the central nervous system, altering the membrane ...
Xinhua Tan +5 more
doaj +2 more sources
A Low-Noise High-Resolution Temperature Measurement Technique Based on Inductive Voltage Divider and Alternating-Current Bridge [PDF]
In the field of space gravitational wave detection, high-precision temperature measurement with a resolution at the micro-Kelvin level in the milli-Hertz frequency range is required to mitigate the interference caused by temperature fluctuations around ...
Shanghua Gao +10 more
doaj +2 more sources
The Design of a Low-Noise CMOS Image Sensor Using a Hybrid Single-Slope Analog-to-Digital Converter [PDF]
In this study, we describe a low-noise complementary metal-oxide semiconductor (CMOS) image sensor (CIS) with a 10/11-bit hybrid single-slope analog-to-digital converter (SS-ADC).
Hyun Seon Choo +4 more
doaj +2 more sources
Novel non-resonant, low-frequency pulse–current circuit for energy-efficient, low-noise transcranial magnetic stimulation [PDF]
IntroductionTranscranial magnetic stimulation (TMS) is increasingly used for non-invasive neuronal activation. By harnessing a pulsed magnetic field, TMS induces electric currents that target the central nervous system.
Xinhua Tan +6 more
doaj +2 more sources
A 6.7 μW Low-Noise, Compact PLL with an Input MEMS-Based Reference Oscillator Featuring a High-Resolution Dead/Blind Zone-Free PFD [PDF]
This article reports a 110.2 MHz ultra-low-power phase-locked loop (PLL) for MEMS timing/frequency reference oscillator applications. It utilizes a 6.89 MHz MEMS-based oscillator as an input reference.
Ahmed Kira +4 more
doaj +2 more sources
Tomography based on cosmic muon absorption is a rising technique because of its versatility and its consolidation as a geophysics tool over the past decade. It allows us to address major societal issues such as long-term stability of natural and man-made
Ignacio Lázaro Roche
doaj +1 more source
Low-Frequency Noise: Experiences from a Low-Frequency Noise Perceiving Population
Although low-frequency noise (LFN) is associated with various complaints, there is still much unknown about this phenomenon. This research aims to provide an extensive description of (1) LFN perceptions, (2) LFN-related complaints, and (3) the characteristics of LFN complainants. In an explorative observational cross-sectional survey study, a sample of
Kristina H. Erdélyi +4 more
openaire +2 more sources
Design and Experiment of Magnetic Antenna Vibration and Noise Reduction System
The magnetic antenna can receive extremely weak underwater magnetic signals, and induce the magnetic field intensity which can reach the femto-tesla (fT) level, making it widely used in underwater electromagnetic signal detection.
Sijie Jiang +5 more
doaj +1 more source

