Results 171 to 180 of about 11,359 (235)

Protocol for assessing auditory function, cochlear synaptopathy, and afferent terminal morphology in laboratory mice. [PDF]

STAR Protoc
Pal I, Bhattacharyya A, V-Ghaffari B, Williams ED, Xiao M, Rutherford MA, Rubio ME.   +6 more
europepmc   +1 more source

Commissioning of a gantry-mounted synchrocyclotron for preclinical FLASH studies utilizing spread-out Bragg peaks. [PDF]

J Appl Clin Med Phys
Lowe M, Zhang H, Owen D, Darafsheh A, Zhao T.   +4 more
europepmc   +1 more source

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A Bandwidth-Adaptive Preamplifier

IEEE Journal of Solid-State Circuits, 2013
We propose an adaptive microphone preamplifier that adjusts its power consumption according to the input signal's bandwidth. A chip prototype of the adaptive preamplifier for speech processing was fabricated in a 0.5-μm CMOS process. The adaptive preamplifier's measured input referred noise is 3 μV rms and its total harmonic distortion is -40 dBc for ...
Dingkun Du, Kofi M. Odame
exaly   +2 more sources

Biopotential Integrated Preamplifier

2020 IEEE 11th Latin American Symposium on Circuits & Systems (LASCAS), 2020
This work presents a novel amplifier architecture which is the input stage of an analog front end targeting the acquisition of biological signals with low voltage supply, low noise, and low power consumption. A prototype was designed and fabricated in a 130 nm CMOS technology, and characterized by simulations and preliminary measurements.
Renzo Caballero, Gonzalo Carozo, María Cecilia Costa-Rauschert, Pablo Aguirre, Conrado Rossi-Aicardi, Julian Oreggioni   +5 more
openaire   +1 more source

Noise in distributed MESFET preamplifiers

IEEE Journal of Solid-State Circuits, 1996
The theory of noise in a distributed MESFET preamplifier is developed. From this, it is shown that the equivalent input noise current density of a distributed preamplifier of an optical receiver can be improved by using large gate line matching impedance and appropriate scaling of the MESFET width.
Alois P. Freundorfer, Thé Linh Nguyen
openaire   +1 more source

A CMOS preamplifier for electret microphones

Proceedings of ISCAS'95 - International Symposium on Circuits and Systems, 2002
In this paper a CMOS preamplifier for capacitive sources is presented. The 20 dB gain preamplifier achieves a dynamic range of 54 dB while the total harmonic distortion is below -50 dB. Monte Carlo analyses have shown output random offset voltages below 40 mvolts. The power consumption of the proposed preamplifier is 24 /spl mu/watts. All this has been
José Silva-Martínez, Jorge Salcedo-Suñer   +1 more
openaire   +1 more source

Evaluation of a Novel EEG Preamplifier

Journal of Clinical Neurophysiology, 2006
The authors performed initial clinical testing of a novel EEG transduction module (ETM), designed to record EEG signals from electrodes with high and unbalanced contact impedances. Twenty patients underwent two consecutive EEG studies. In the first, "experimental" study, electrodes were applied to an unprepared scalp, and the ETM performed initial ...
Arthur C, Grant, James P, O'Halloran, Steve S, Chung, Wende, Gibbs, Peter W, Kaplan   +4 more
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A preamplifier for magnetostriction spark chambers

Nuclear Instruments and Methods, 1970
Abstract The specifications of a non overloading preamplifier for magnetostriction spark chambers are described in detail. The design of the preamplifier that has been developed is discussed. Its characteristics are: gain of 1300, risetime of 80 nsec, equivalent input noise of 10 μV r.m.s.
DE BLASI, Mario, G. GIANNELLI, B. MARANGELLI   +2 more
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Performance of an optical detector preamplifier

Optics Letters, 1993
The possibility for improvement of the signal-to-noise ratio of a Doppler lidar has been deduced theoretically and shown experimentally. An optical amplifier has been built up and integrated into a Doppler lidar. The measured improvement of the signal-to-noise ratio has been compared with the calculated value.
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A CARDIO PREAMPLIFIER FOR THE FREE‐ROVING RAT

Psychophysiology, 1965
ABSTRACTA transistorized amplifier has been designed with the aim of providing a reliable triggering signal for a cardiotachograph when it is recording from small animals. The frequent base‐line instabilities of the cardio signal caused by the animal's movements are eliminated by the use of a transformer at the input. Direct coupling between the stages
openaire   +2 more sources