Design of Data Acquisition System Based on LabVIEW

2012 ◽  
Vol 569 ◽  
pp. 808-813 ◽  
Author(s):  
Ling Gang Liu ◽  
Jun Hui Li ◽  
Lu Hua Deng

Based on LabVIEW, this paper presents a design scheme of data acquisition, which it proposes using computer and ordinary data collection card as the main hardware and LabVIEW as software development platform, thus constructs the virtual instrument system for signal acquisition. The system can realize synchronous data acquisition of single channel or multi-channel signal, as well as real-time display and preservation. The practice shows that this scheme can not only effectively play performance of ordinary data acquisition card, but also reduce greatly program development time and beautify interface through LabVIEW which has powerfully visual human-machine interface editor and graphical programming function.

2012 ◽  
Vol 239-240 ◽  
pp. 861-864
Author(s):  
Yan Qin Li ◽  
Chun Fu Li

An efficient data acquisition system for electronic automatic transmission test, which makes use of American NI’s data acquisition card, is designed based on Virtual Instrument. The data can be collected by the data acquisition system include automatic transmission oil pressure, solenoid duty, as well as engine speed ,turbine speed ,output shaft speed and throttle degree,and so on. The key problems of the system design are measurement method of automatic transmission solenoid duty, signal conditioning circuit design and multi-signal acquisition synchronization. Test platform is North-Benz dump truck 2627K (Its power-train assembly is replaced), of which transmission and engine use respectively HD4070PR electronic automatic transmission and BF6M1015CP electronic diesel engine. The automatic transmission shift control strategy and oil pressure characteristics of clutch or brake etc can be analyzed through test data acquisition.


2012 ◽  
Vol 155-156 ◽  
pp. 765-769
Author(s):  
Er Lie Wang ◽  
Hui Yan Chen ◽  
Gang Tao ◽  
Yu Hui Hu

Based on the analysis of the testing automatic transmission (AT), the AT’s solenoid valve control signals conditioning circuits and revolving speed F/V converter conditioning circuits are designed, and the data acquisition system is designed based on virtual instrument. The system is composed of the PCI-6024E data acquisition card, signal conditioning circuits and computer, and the acquisition procedure is programmed in graphical language LabVIEW. Finally, the data acquisition system has been verified on vehicle test bench which loads ZF-Ecomat 6HP500 AT. Controlling signals of switching solenoid valves, duty cycle signal of proportional solenoid valve, accelerator aperture signal, oil pressure signals and speed signals are collected, it turns out that the data acquisition system has good feasibility.


2012 ◽  
Vol 239-240 ◽  
pp. 865-868
Author(s):  
Chun Fu Li ◽  
Yan Qin Li

A data acquisition system for electronic automatic transmission test, which makes use of American NI’s data acquisition card, is designed based on Virtual Instrument. The data can be collected by the data acquisition system include automatic transmission oil pressure, solenoid duty, as well as speed of turbine and output shaft of transmission and throttle degree of engine and so on. The key problems of the system design are measurement method of automatic transmission solenoid duty, signal conditioning circuit design and how to improve sampling rate of the system. Test platform is of a armored vehicle which has equipped a high-power electronic automatic transmission. The automatic transmission shift control strategy and characteristics of throttle oil pressure etc can be obtained through test data acquisition.


2014 ◽  
Vol 556-562 ◽  
pp. 1332-1337
Author(s):  
Li Xin Wang ◽  
Li Gang Zhai ◽  
Ya Yan Gao

Friction wear testing machine is generally used in researches of various friction wear mechanisms, explorations of influences factors, and property evaluations of friction pair materials. Measurement accuracy and automation level of the friction wear testing machine directly influence the precision of data acquisition and analysis processing, as well as the intuition of data displaying. Based on virtual instrument LabVIEW, a data acquisition system of friction wear testing machine was developed. Hardware of this data acquisition system mainly consists of sensors utilized as acquiring information on rotate speed, normal pressure, friction force and temperature, as well as signal conditioning module and data acquisition card. Utilizing the LabVIEW, data processing and interface displaying software was programmed. Debugging results confirmed that the developed system can accurately acquire the demand information when operating the friction wear testing machine, also intuitively display these obtained information in real-time. Therefore, the developed data acquisition system satisfies the demand of precisely acquiring information related to friction wear testing of experimental materials.


2004 ◽  
Vol 14 (1) ◽  
pp. 14-18
Author(s):  
J. A. Andrade Lucio ◽  
O. Vite-Chávez ◽  
Roberto Olivera-Reyna ◽  
Reynel Olivera-Reyna ◽  
O. G. Ibarra-Manzano ◽  
...  

A simple automatic control for applications of optical characterization of materials using theoptical Z-scan technique is presented in this paper. The emphasis is placed in the automation process. For this purpose, a communication I/O port of a PCI-MIO-16E data acquisition card (from National Instruments) was used and the graphical programming language LabVIEW.


2018 ◽  
Vol 9 (2) ◽  
pp. 8-16
Author(s):  
Juan Vicente Cajal-Barros

The project designed and implemented was an EEG as the first part of a macro project, which allowed the integration between the different programs of ANTONIO NARIÑO University. This system is an integral part of the physiographer, conditioning circuits, filters, amplifiers, a data acquisition system and a virtual instrument were designed that capture the variables through a data acquisition card to be analyzed and visualized dynamically on a personal computer. Design and implementation process were divided into 5 modules. It will begin describing magnitudes to be measured, the sensors that will give us a better capture of our signals, the next two modules are the circuitry and the patient protection, to finish with data acquisition and the visualization in a personal computer.


2014 ◽  
Vol 584-586 ◽  
pp. 2023-2027
Author(s):  
Wei Sun ◽  
Ying Zhang ◽  
Shao Fei Jiang

A vibration signal acquisition system was designed based virtual instrument technology. The process and principle design of structure vibration signal acquisition system based on LabVIEW software and CompactRIO hardware were discussed in detail. Finally, system test was conducted by a three story steel frame structure. And the test results were compared with traditional instruments system. The experiment showed that the data acquisition system of structure vibration signal which based on CompactRIO is precise and reliable in measurement results, and can realize multi channel synchronous data acquisition, storage, and support the real-time online data filtering and spectrum analysis and so on.Compared with the traditional platforms, the system proposed in the paper has short development cycle, low cost, user-defined functions, rugged, portable and other advantages. It can be widely used in complex and special building environment, so it will have a broad application prospect in the field of SHM.


2013 ◽  
Vol 416-417 ◽  
pp. 530-535
Author(s):  
Jian Xun Jin ◽  
Wei Xu ◽  
Yan Chen ◽  
You Guang Guo ◽  
Jian Guo Zhu

A novel control platform for the permanent magnet linear synchronous motor (PMLSM) drive system has been built up based on virtual instrument (VI) and relavant data acquisition card (DAQ) devices. In the traditional control platform, it mostly depends on digital signal processor (DSP), which needs a lot of time to further develop the interface between the personal computer (PC) and operators, and its computational capability is not strong than computer. To overcome these shortages, a novel control platform is presented on the base of one PC, one LabVIEW, and one multifunctional data acquisition card. Firstly, a space vector pulse width modulation (SVPWM) signal source is executed in the VI. Then in order to improve the precision of control system, the field oriented control (FOC) is proposed for the PMLSM. Finally comprehensive experiments verify with relative simulations.


2021 ◽  
Vol 21 (10) ◽  
pp. 248
Author(s):  
Xin Pei ◽  
Jian Li ◽  
Na Wang ◽  
Toktonur Ergesh ◽  
Xue-Feng Duan ◽  
...  

Abstract A multi-function digital baseband data acquisition system is designed for the sampling, distribution and recording of wide-band multi-channel astronomical signals. The system hires a SNAP2 board as a digital baseband converter to digitize, channelize and packetize the received signal. It can be configured dynamically from a single channel to eight channels with a maximum bandwidth of 4096 MHz. Eight parallel HASHPIPE instances run on four servers, each carrying two NVMe SSD cards, achieving a total continuous write rate of 8 GB s−1. Data are recorded in the standard VDIF file format. The system is deployed on a 25-meter radio telescope to verify its functionality based on pulsar observations. Our results indicate that during the 30-minute observation period, the system achieved zero data loss at a data recording rate of 1 GB s−1 on a single server. The system will serve as a verification platform for testing the functions of the QTT (QiTai radio Telescope) digital backend system. In addition, it can be used as a baseband/VLBI (Very Long Baseline Interferometry) recorder or D-F-engine of correlator/beamformer as well.


2014 ◽  
Vol 644-650 ◽  
pp. 1180-1184
Author(s):  
Bo Zhang

For backward status of a missile guidance device monitoring methods, developed a set of ground monitoring system based on virtual instrument technology. The system meets the standard test of a certain type of missile guidance device, the data acquisition card and controller of PXI bus as the hardware platform, using LabVIEW as the software development platform, The acquisition of analog signal, video signal and serial communication set in one, it can detect the performance and parameters of the guidance device, and monitoring the flight trajectory of the missile qualitatively. The application results show that the monitoring system is stable and reliable, improve the efficiency and accuracy of monitoring, and has a certain popularization value.


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