Design of Signal Acquisition and Analysis System Based on LabVIEW

2011 ◽  
Vol 71-78 ◽  
pp. 4065-4068
Author(s):  
Gui Ji Tang ◽  
Zi Rui Wang ◽  
Jing Jing Sun
Keyword(s):  
Data Acquisition ◽  
Virtual Instrument ◽  
Signal Analysis ◽  
Processing System ◽  
Signal Acquisition ◽  
Functional Requirements ◽  
Time Data ◽  
Dual Channel ◽  
Signal Simulation ◽  
Analysis System

This paper designed a signal acquisition and analysis system based on the characteristics of the graphical programming language of LabVIEW. The system adopted NI USB -9234 data collection card, applied with the virtual instrument and related technology for the signal collecting and processing system. The system also has dual-channel data acquisition, real time data acquisition, signal analysis in time domain and frequency domain, FFT implementation Waterfall conversion, signal simulation capabilities. On the basis of analysis the systems functional requirements, a detailed description of the functional programming and design of the front panel is approached. At last the feasibility of system is experimental inspected and detailed. Experiments have shown that the virtual instrument is a good solution to the efficient implementation of various missions.

Data Acquisition System Design and Data Analysis on Automatic Transmission

2012 ◽  
Vol 239-240 ◽  
pp. 861-864
Author(s):  
Yan Qin Li ◽  
Chun Fu Li
Keyword(s):  
Data Acquisition ◽  
System Design ◽  
Virtual Instrument ◽  
Automatic Transmission ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Dump Truck ◽  
Signal Acquisition ◽  
Transmission Oil ◽  
Turbine Speed

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.

Development of the Measurement and Analysis System of Nanoparticles Size Distribution

2010 ◽  
Vol 121-122 ◽  
pp. 168-171 ◽  
Author(s):  
Zhen Mei Li ◽  
Wen Ge Li ◽  
Jin Shen ◽  
Wei Liu
Keyword(s):  
Light Scattering ◽  
Size Distribution ◽  
Virtual Instrument ◽  
High Speed ◽  
Photon Counting ◽  
Peak Position ◽  
Time Data ◽  
The Real ◽  
Measurement And Analysis ◽  
Analysis System

The measurement and analysis system of nanoparticles size distribution was developed by using virtual instrument technology, while the photon counting technology was applied in the system to replace the expensive correlator. High speed photon pulse counter was designed. The real-time data of nanoparticles dynamic light scattering were analyzed in the mixed program of MATLAB and LabVIEW, where the time autocorrelation functions of nanoparticles light scattering signals of monodisperse and polydisperse are reversed by NNLS arithmetic. Experiments results show that the peak position, peak width and symmetry of inverse distribution are very close to the real simulate particles.

A Kind of Virtual Instrument Based Data Acquisition for Vehicle Test

2012 ◽  
Vol 241-244 ◽  
pp. 265-268 ◽  
Author(s):  
Kai Liu ◽  
Li Rong Wang
Keyword(s):  
Data Acquisition ◽  
Virtual Instrument ◽  
Can Bus ◽  
Programming Environment ◽  
Virtual Instrumentation ◽  
Time Data ◽  
Graphical Programming ◽  
Real Time Data ◽  
Vehicle Test ◽  
Real Vehicle

A data acquisition platform for vehicle test is presented by combining virtual instrumentation technology with graphical programming environment of LabVIEW. Multiple modular instrumentations are employed for capturing different kinds of data from electronic transducers and CAN bus in synchronization. LabVIEW based software adopts QSM-PC (Queued State Machine Producer Consumer) architecture, which can perform functions of multi-channel, real-time data acquisition, processing, storage, and readback. The presented platform, taking advantages of high integratability and great scalability, is verified by real-vehicle experiments.

Based on the LabVIEW Electrified Railway Signal Acquisition and Processing System of Electromagnetic Radiation

2013 ◽  
Vol 457-458 ◽  
pp. 1249-1252
Author(s):  
Yao Dan Chi ◽  
Yu Song Mu ◽  
Hai Long Gu
Keyword(s):  
Electromagnetic Radiation ◽  
Virtual Instrument ◽  
Electromagnetic Compatibility ◽  
Rapid Development ◽  
Processing System ◽  
Signal Acquisition ◽  
Development Environment ◽  
Railway Signal ◽  
Electrified Railway ◽  
Embedded Development

Electrified railway got rapid development in recent years, increasingly highlights its electromagnetic compatibility problems. In this paper, on the basis of predecessors' research results, the virtual instrument technology is applied to the electromagnetic radiation of electrified railway signal measurement, complete embedded processing equipment design, make its have the electromagnetic radiation on the railway signal detection, acquisition and processing functions. Based on LabVIEW embedded development environment configuration and Windows CE operating system builds and transplantation, realize the man-machine interface easy to operate and flexible signal processing algorithms.

Design and Research on the Test and Analysis System for the Proportional Relief Valve Characteristics

2011 ◽  
Vol 317-319 ◽  
pp. 1411-1417
Author(s):  
Chuan Xi Liu ◽  
Xian Ju Meng
Keyword(s):  
Virtual Instrument ◽  
Modular Design ◽  
Automatic Measurement ◽  
Test Method ◽  
Dynamic State ◽  
Time Data ◽  
Relief Valve ◽  
Starting Point ◽  
Stable Performance ◽  
Analysis System

With economic and practical as a starting point, we design and develop the hydraulic platform for proportional relief valve characteristics and automatic test and analysis system that based on virtual instrument and MATLAB software. A new modular design (MD) has been applied to test method for proportional relief valve characteristics, which realized the real-time data acquisition for multi-path pressure signal of automatic measurement & control and hydraulic system for steady state and dynamic state of DBE series proportional relief valve, and conducted analysis such as time domain, frequency domain, visualization and so on to collected data, obtained rather valuable test data and characteristics conclusion. Experiments show that this system has reasonable design and stable performance, enhances the test precision, improves the test method, enriches the analysis means and has good cost performance and research practicability.

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