scholarly journals Artefactual origin of biphasic cortical spike-LFP correlation

2016 ◽  
Author(s):  
Michael Okun
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Pass Filter ◽  
Neural Data ◽  
Data Acquisition Systems ◽  
Electrophysiological Data ◽  
High Pass Filter ◽  
High Pass

AbstractElectrophysiological data acquisition systems introduce various distortions into the signals they record. While such distortions were discussed previously, their effects are often not appreciated. Here I show that the biphasic shape of cortical spike-triggered LFP average (stLFP), reported in multiple studies, is likely an artefact introduced by high-pass filter of the neural data acquisition system when the actual stLFP has a single trough around the zero lag.

A 50 mHz Sinh-Domain High-pass Filter for Realizing an ECG Signal Acquisition System

2014 ◽  
Vol 33 (12) ◽  
pp. 3673-3696 ◽  
Author(s):  
Filomila Kafe ◽  
Farooq A. Khanday ◽  
Costas Psychalinos
Keyword(s):  
Acquisition System ◽  
Signal Acquisition ◽  
Ecg Signal ◽  
Pass Filter ◽  
High Pass Filter ◽  
High Pass

scholarly journals A fully implantable 96-channel neural data acquisition system

2009 ◽  
Vol 6 (2) ◽  
pp. 026002 ◽  
Author(s):  
Michael Rizk ◽  
Chad A Bossetti ◽  
Thomas A Jochum ◽  
Stephen H Callender ◽  
Miguel A L Nicolelis ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Neural Data

scholarly journals Fuzzy logic applications for data acquisition systems of practical measurement

2020 ◽  
Vol 10 (4) ◽  
pp. 3441
Author(s):  
Muhammad Haddin ◽  
Arief Marwanto ◽  
Agus Suprajitno ◽  
Munaf Ismail
Keyword(s):  
Experimental Data ◽  
Fuzzy Logic ◽  
Data Acquisition ◽  
Error Rate ◽  
Web Server ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Measurement Result ◽  
Data Acquisition Systems ◽  
Valid Data

In laboratory works, the error in measurement, reading the measurring devices, similarity of experimental data and lack of understanding of practicum materials are often found. These will lead to the inacurracy and invalid in data obtanined. As an alternative solution, application of fuzzy logic to the data acquisition system using a web server can used. This research focuses on the design of data acquisition systems with the target of reducing the error rate in measuring experimental data on the laboratory. Data measurement on laboratory practice module is done by taking the analog data resulted from the measurement. Furthermore, the data are converted into digital data via arduino and stored on the server. To get valid data, the server will process the data by using fuzzy logic method. The valid data are integrated into a web server so that it can be accessed as needed. The results showed that the data acquisition system based on fuzzy logic is able to provide recommendation of measurement result on the lab works based on the degree value of membership and truth value. Fuzzy logic will select the measured data with a maximum error percentage of 5% and select the measurement result which has minimum error rate.

Data Acquisition System Connect to CMG-3T Low-Frequency Seismic Pendulum

2013 ◽  
Vol 734-737 ◽  
pp. 2945-2948
Author(s):  
Ting Ting Liu ◽  
Yong Wu ◽  
Jun Lin
Keyword(s):  
Data Acquisition ◽  
Seismic Waves ◽  
Low Frequency ◽  
Data Acquisition System ◽  
Low Noise ◽  
Acquisition System ◽  
Power Module ◽  
Pass Filter ◽  
Low Pass Filter ◽  
Low Pass

Aiming at the low-frequency performance of the lowfrequency seismic pendulum CMG -3T, we design a data acquisition system can acquire the low-frequency seismic waves, at the same time we accomplish the process of adjusting the CMG-3T. This paper gives designing scheme include the low noise design of the power module, the design of the connector to RS232 which can send command to adjusting the mass of CMG-3T,the design of voltage attenuation network and no-source low-pass filter network of data acquisition system, the last is the design of software for adjusting the CMG-3T.

scholarly journals A direct-to-drive neural data acquisition system

2015 ◽  
Vol 9 ◽  
Author(s):  
Justin P. Kinney ◽  
Jacob G. Bernstein ◽  
Andrew J. Meyer ◽  
Jessica B. Barber ◽  
Marti Bolivar ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Neural Data

scholarly journals ЛАЗЕРНЫЙ ДЕФОРМОГРАФ С ФОРМИРОВАНИЕМ КВАДРАТУРНЫХ СИГНАЛОВ

2019 ◽  
Author(s):  
V.A. Shvets
Keyword(s):  
Experimental Data ◽  
Data Acquisition ◽  
Light Source ◽  
High Reliability ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Data Acquisition Systems ◽  
Measuring Complex ◽  
Sample Rate ◽  
Laser Interferometers

В данной работе приведены некоторые результаты разработки, создания и использования регистрирующих систем для длиннобазовых лазерных деформографов и других измерительных приборов, созданных на его основе. В качестве источника излучения используется частотностабилизированный лазер с длиной волны 633 нм. Приведено описание регистрирующей системы лазерного деформографа с использованием квадратурных сигналов, позволяющей достигать высокой чувствительности (L/L 1010), способной регистрировать колебания высокой частоты (до 4 кГц), имеющей высокую надежность. Представлены результаты испытаний данной системы и ее работы в составе измерительного комплекса.This article gives a brief overview of results achieved in process of design, developing and using of data acquisition systems for LSM (longbase strainmeters) and other devices based on laser interferometers. А frequencystabilized 633 nm laser is used as a light source. The data acquisition system of homodyne quadrature LSM was described, and main characteristics of the instrument are: high sensivity (L/L 1010), high sample rate (up to 4 kHz), high reliability. Trial records and experimental data obtained in measuring complex were processed and some results are presented.В данной работе приведены некоторые результаты разработки, создания и использования регистрирующих систем для длиннобазовых лазерных деформографов и других измерительных приборов, созданных на его основе. В качестве источника излучения используется частотностабилизированный лазер с длиной волны 633 нм. Приведено описание регистрирующей системы лазерного деформографа с использованием квадратурных сигналов, позволяющей достигать высокой чувствительности (L/L 1010), способной регистрировать колебания высокой частоты (до 4 кГц), имеющей высокую надежность. Представлены результаты испытаний данной системы и ее работы в составе измерительного комплекса.This article gives a brief overview of results achieved in process of design, developing and using of data acquisition systems for LSM (longbase strainmeters) and other devices based on laser interferometers. А frequencystabilized 633 nm laser is used as a light source. The data acquisition system of homodyne quadrature LSM was described, and main characteristics of the instrument are: high sensivity (L/L 1010), high sample rate (up to 4 kHz), high reliability. Trial records and experimental data obtained in measuring complex were processed and some results are presented.В данной работе приведены некоторые результаты разработки, создания и использования регистрирующих систем для длиннобазовых лазерных деформографов и других измерительных приборов, созданных на его основе. В качестве источника излучения используется частотностабилизированный лазер с длиной волны 633 нм. Приведено описание регистрирующей системы лазерного деформографа с использованием квадратурных сигналов, позволяющей достигать высокой чувствительности (L/L 1010), способной регистрировать колебания высокой частоты (до 4 кГц), имеющей высокую надежность. Представлены результаты испытаний данной системы и ее работы в составе измерительного комплекса.

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