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.

scholarly journals ЛАЗЕРНЫЙ ДЕФОРМОГРАФ С ФОРМИРОВАНИЕМ КВАДРАТУРНЫХ СИГНАЛОВ

2019 ◽  
Author(s):  
V.A. Shvets
Keyword(s):  
Experimental Data ◽  
Data Acquisition ◽  
Light Source ◽  
Laser Interferometer ◽  
High Reliability ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Data Acquisition Systems ◽  
Laser Interferometers ◽  
Keywords Laser

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. Ключевые слова: лазер, интерферометр, лазерный деформограф.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. Keywords: laser, interferometer, laser strainmeter.

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.

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.

Vehicle-Carrying Multi Channel Data Acquisition System Based on the CompactRIO

2013 ◽  
Vol 385-386 ◽  
pp. 1260-1263 ◽  
Author(s):  
Yun Lei Zhang ◽  
Xing Wu ◽  
Pan Nan ◽  
Xu Wang
Keyword(s):  
Data Acquisition ◽  
System Architecture ◽  
High Reliability ◽  
Data Acquisition System ◽  
State Machine ◽  
The State ◽  
Acquisition System ◽  
Control Technology ◽  
Embedded Platform ◽  
Synchronized Control

In order to obtain the key parameters which required by the Vehicle-Carrying test, the multi-channel data acquisition system based on CompactRIO embedded platform was developed. This system was satisfied the requirement of high reliability, inexpensive, portable and rapid configuration, Then, synchronized control technology such as queue, FIFO, interrupt and the superior system architecture which is compare to the state machine has been introduced in detail. Finally, availability and stability of the system were proved through the pressure text of data acquisition.

The Electric Quantity Data Acquisition System Based on Wireless Sensor Network

2012 ◽  
Vol 239-240 ◽  
pp. 879-883
Author(s):  
Jian Nong Wang ◽  
Wei Wang
Keyword(s):  
Data Acquisition ◽  
High Reliability ◽  
Electric Energy ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Network Nodes ◽  
Zigbee Network ◽  
Promising Application ◽  
Electric Quantity ◽  
Special Algorithm

This paper introduces an electric quantity data acquisition system based on WSN, and a special algorithm which is used in multi-channel electric data acquisition is also introduced. In this algorithm, a large number of hardware circuits are replaced by software functions, the design of the hardware is simplified, and it is of practical value. The system includes pulse kilowatt-hour meters, Data Acquisition(DAQ), data concentrators , Server and Zigbee network nodes (Router and Coordinator) and so on. This paper explains the structure of Zigbee network, the network features of DRF1605H Zigbee module, the special algorithm of electric quantity data acquisition, the structure of WSN electric quantity data acquisition system, the design of electric quantity data acquisition hardware and software and so on. After designing and implementing this system, the electric quantity data acquisition, the data transmission between each ZigBee node and the ability of anti-interference are tested. The results of each test show that each part of the system works properly and meets the original requirements of the design. From the running condition of the system, the system for electric quantity data acquisition and transmission has some characteristics such as a simple structure, accurate data, a strong anti-interference ability, high reliability of WSN, easy maintenance, good scalability and so on, which indicate it has a promising application future. This system helps to plan the use of electricity and dispatch the power. Not only is the electric energy management automation level improved, but also manpower and material resources are saved, leading to remarkable economical benefits.

Remote Data Acquisition System Design and Application Based on GPRS

2014 ◽  
Vol 687-691 ◽  
pp. 4080-4083
Author(s):  
Wen Tao ◽  
Sun Li
Keyword(s):  
Data Acquisition ◽  
System Design ◽  
Real Time ◽  
Data Transmission ◽  
High Reliability ◽  
Internet Access ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Hardware System ◽  
Remote Data

This paper puts forward a new scheme of remote data acquisition system based on GPRS to solve various problems people encounter in the process of production and living. The scheme adopts GPRS’s Internet access function; hardware system CPU chooses microcontroller AT89S51; GPRS module chooses SIM100 to solve the problem of real time and reliability of data transmission, at the same time build the acquisition system with strong real-time communication, and high reliability. The application results show the effectiveness of the proposed scheme.

Design of Control System for Pavement Accelerated Loading Testing Equipment Based on Bus Technology

2012 ◽  
Vol 433-440 ◽  
pp. 3531-3535
Author(s):  
Xing Yu Guo ◽  
Peng Zhang ◽  
Jin Xiang Feng ◽  
Xu Guang Wang
Keyword(s):  
Control System ◽  
Field Experiment ◽  
Data Acquisition ◽  
Can Bus ◽  
High Reliability ◽  
Data Acquisition System ◽  
Testing Equipment ◽  
Acquisition System ◽  
Analysis And Design ◽  
Improve Reliability

In order to improve reliability of running and facility of data acquisition for the pavement accelerated loading testing equipment, simplify wiring and reduce fault rate, the analysis and design of control system and data acquisition system hardware and software for the pressure, speed, load times and otherwise are done. The distributed CAN Bus technique is used for control and data acquisition, which can collect data from many nodes for each parameter. After a number of laboratory and field experiment, the results show that high reliability of system running and precision, anti-interference of data acquisition are improved by the design of control system for pavement accelerated loading testing equipment based on CAN bus technology.

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