Results 31 to 40 of about 541,244 (307)

Analysis of the transfer function for layered piezoelectric ultrasonic sensors

open access: yesAIP Advances, 2017
We model theoretically the voltage response to an acoustic pulse of a multilayer system forming a low noise capacitive sensor including a Polyvinylidene Fluoride piezoelectric film.
E. Gutiérrrez-Reyes   +5 more
doaj   +1 more source

Transfer function measured by electromagnetic sounding with an accurately controlled signal [PDF]

open access: yesEarth, Planets and Space, 2014
We present the fundamentals of an electromagnetic sounding with an accurately controlled source signal. In this method, the tensor transfer function between transmitted and received vector electromagnetic fields is measured. We formulated the transfer function by introducing a ray model that describes the propagation of the general electromagnetic ...
Mineo Kumazawa   +2 more
openaire   +2 more sources

Circuit Topology and Small Signal Modeling of Variable Duty Cycle Controlled Three-Level LLC Converter

open access: yesEnergies, 2019
With a view to regulate the output voltage with fixed frequency, without using any additional component or complex modulation technique, a topology of a variable duty controlled three-level LLC converter is proposed and an equivalent small signal model ...
Hussain Humaira   +3 more
doaj   +1 more source

Full Order Symbolic Small Signal Analysis of Peak-Current-Controlled SEPIC by PWM-Switch Model

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2020
Full order small signal analysis of peak-current controlled non-isolatedSingle Ended Primary Inductor Converter (SEPIC) is presented by utilizingpwm-switch model in Continuous Conduction Mode (CCM). The analysis providescontrol to output voltage transfer
Ekrem Cengelci
doaj   +1 more source

Optimal information transfer in the cortex through synchronization. [PDF]

open access: yesPLoS Computational Biology, 2010
In recent experimental work it has been shown that neuronal interactions are modulated by neuronal synchronization and that this modulation depends on phase shifts in neuronal oscillations. This result suggests that connections in a network can be shaped
Andres Buehlmann, Gustavo Deco
doaj   +1 more source

Accuracy Assessment of Shake Table Device on Strong Earthquake Output

open access: yesAdvances in Civil Engineering, 2019
In order to avoid unexpected damage of structural specimens in the test, at the beginning, a signal with small amplitude is adopted to input the shake table device to gain the transfer function and corresponding drive signal, and then a strong earthquake
Wei Guo   +4 more
doaj   +1 more source

Methods of DC/DC converter transfer function measurements, based on data acquired in the time domain [PDF]

open access: yesMetrology and Measurement Systems, 2019
The measurement of frequency characteristics, like magnitude and phase, related to a specific transfer function of DC–DC converters, can be a difficult task – especially when the measured signal approaches the boundary of a small-signal model validity (i:
Marcin Walczak
doaj   +1 more source

A transfer function based on bilinear transformation for narrow-band seismic record.

open access: yesPLoS ONE
For a narrow-brand seismograph with a flat response range limited, it cannot precisely record the signal of a ground motion and output the records with the low-frequency components cut down.
Zhiming Xu, Yashuang Bai
doaj   +1 more source

A Wireless Interface for Replacing the Cables in Bridge-Sensor Applications

open access: yesSensors, 2012
This paper presents a solution in which a wireless interface is employed to replace the cables in bridge-sensor measurement applications. The most noticeable feature of the presented approach is the fact that the wireless interface simply replaces the ...
Franc Novak, Marko Pavlin
doaj   +1 more source

Single Robot Localisation Approach for Indoor Robotic Systems through Integration of Odometry and Artificial Landmarks

open access: yesApplied Computer Systems, 2013
we present an integrated approach for robot localization that allows to integrate for the artificial landmark localization data with odometric sensors and signal transfer function data to provide means for different practical application scenarios.
Nikitenko Agris   +4 more
doaj   +1 more source

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