Research on Signal Acquisition and Analysis System Based on Virtual Instrument Technology

2014 ◽  
Vol 556-562 ◽  
pp. 4321-4324
Author(s):  
Hui Pan ◽  
Mei Gao ◽  
Yan Pan
Keyword(s):  
Virtual Instrument ◽  
Low Cost ◽  
Signal Acquisition ◽  
User Requirement ◽  
Development Platform ◽  
Instrument Technology ◽  
Analysis System ◽  
And Function ◽  
Virtual Signal ◽  
And Storage

In this paper, we used Lab VIEW development platform, designed a virtual signal acquisition and analysis system based on the soundcard. In addition we studied the signal acquisition performance of it. This system has functions of signal acquisition, analysis, waveform display and storage. It is easy to use with good interface, and function appending is available on user requirement. It offers a kind of DAQ solution with low cost. It has broad application prospect, can be extended to the field of speech recognition, ambient noise monitoring and laboratory measurement etc.

Design of Audio Signal Testing and Analysis System Based on Virtual Instrument

2012 ◽  
Vol 490-495 ◽  
pp. 208-212 ◽  
Author(s):  
Nan Quan Zhou
Keyword(s):  
Virtual Instrument ◽  
High Performance ◽  
Teaching Practice ◽  
Low Cost ◽  
Audio Signal ◽  
Signal Acquisition ◽  
Sound Card ◽  
Time Dynamic ◽  
Development Platform ◽  
Analysis System

An audio signal acquisition and analysis system with low-cost and high performance was developed, taking LabVIEW as the software development platform and the computer sound card as hardware platform. This system is capable of audio signal acquisition, real time dynamic display, analysis processing, storage and display of audio signal. Practical application shows that this system not only has those advantages such as high-precision, stability, reliable performance and being easy-operated, but also can achieve common data-acquisition within the designed frequency range of the sound card. The signal acquisition technology based on the sound card, especially the technology combining with virtual instruments has broad prospects in the field of engineering test measurement and teaching practice.

Design of Temperature Acquisition and Analysis System Based on LABVIEW

2013 ◽  
Vol 816-817 ◽  
pp. 762-765
Author(s):  
Li Mei Wen ◽  
Min Ma
Keyword(s):  
Software Development ◽  
Real Time ◽  
Virtual Instrument ◽  
Environmental Temperature ◽  
Temperature Sensors ◽  
Development Platform ◽  
Labview Software ◽  
New Ideas ◽  
Instrument Technology ◽  
Analysis System

The introduction of the virtual instrument technology provides new ideas for the developments of the temperature acquisition. This paper presents the design of temperature acquisition system based on VI technology. This system takes LABVIEW as the software development platform, simulating environmental temperature parameters via temperature sensors and heaters. Through the USB-6009 data collecting cards environmental temperature is sent to LABVIEW software platform for analysis. The system has the functions of data acquisition, display, storage, callback, save, analysis, printing statements and limit alarm processing and so on, and completes the real-time collection and analysis of the temperature.

Design and Implementation of Multi Tone Modulation System Based on Sound Card

2014 ◽  
Vol 644-650 ◽  
pp. 3755-3758
Author(s):  
Dan Ren
Keyword(s):  
Virtual Instrument ◽  
High Performance ◽  
Low Cost ◽  
Audio Signal ◽  
Signal Acquisition ◽  
Sound Card ◽  
Development Platform ◽  
Actual Application ◽  
Signal Collection ◽  
Stable Performance

A multi tone modulation system design and development with a low-cost and high performance was developed, taking LabVIEW as the software development platform and the computer sound card as the hardware platform. The system is capable of audio signal acquisition, multi tone modulation, demodulation, waveform and spectrum analysis, and other functions. Actual application shows that the system is not only high accuracy, and reliable, stable performance, easy to operate and extensions. The signal collection technology based on the sound card and the combination of virtual instrument has a broad application prospect in engineering survey and practical teaching.

Design of Mechanical Vibration Test System Based on Virtual Instrument Technology

2011 ◽  
Vol 322 ◽  
pp. 291-295 ◽  
Author(s):  
Hua Zhao
Keyword(s):  
Data Acquisition ◽  
Virtual Instrument ◽  
Mechanical Vibration ◽  
Domain Analysis ◽  
Test System ◽  
Acquisition Time ◽  
Vibration Test ◽  
Time Frequency ◽  
Development Platform ◽  
Instrument Technology

With piezoelectric acceleration sensor, charge voltage filter amplifier, data acquisition card, PC and vibration experiment table for hardware development platform, and LABVIEW for software development platform, virtual instrument technology was applied to the design of mechanical vibration test system. This test system mainly consists of data acquisition, time domain analysis, amplitude domain analysis, frequency domain analysis, time-frequency analysis module. Experimental results indicate: The system not only can perform real-time data acquisition of multiple channels signal, waveform display, data storage, signal analysis, playback measurement and output printing etc, but also has good expansibility, high speed, high accuracy and friendly interface. It is suitable for engineering personnel and laboratory use.

The Measurement and Analysis System Development of 3D Roll Forming Machine Dynamic Characteristics Based on Virtual Instrument

2014 ◽  
Vol 889-890 ◽  
pp. 726-731
Author(s):  
Yuan Sheng Hu ◽  
Qiang Li ◽  
Yan Zhi Guan
Keyword(s):  
Dynamic Characteristics ◽  
Virtual Instrument ◽  
System Development ◽  
Three Dimensional ◽  
Field Measurements ◽  
Test System ◽  
Roll Forming ◽  
Development Platform ◽  
Measurement And Analysis ◽  
Analysis System

For the study dynamic characteristics of three-dimensional roll forming machine, this paper develops a dynamic characteristics measurement and analysis system of three-dimensional roll forming machine, which is based on the U.S. NI company software development platform, including the development of hardware and software part .The realization of dimensional roll forming machine dynamics parameters collection and analysis, the experiment proved that the test system can be easily field measurements demand dynamics parameters, to improve the three-dimensional roll forming machine precision and control accuracy to provide an experimental basis.

Design of Power Quality Analyzer Based on Labwindows/CVI

2012 ◽  
Vol 466-467 ◽  
pp. 759-762 ◽  
Author(s):  
Fan Yang ◽  
Hui Zhao
Keyword(s):  
Power Quality ◽  
Virtual Instrument ◽  
Electric Power System ◽  
Quality Analysis ◽  
Harmonic Amplitude ◽  
Quality Analyzer ◽  
Instrument Technology ◽  
Analysis System ◽  
Hardware Circuit ◽  
Design Ideas

The traditional quality analysis system has many disadvantages such as the bulky, expensive, fixed functional modules, poor extension, monotonous display etc. Combined with the virtual instrument technology, the paper propose design ideas of instrument Virtual power quality analysis based on LabWindows/CVI, including design of hardware circuit and software, obtain harmonic amplitude and phase by making use of fast Fourier transform. The analyzer has high accuracy, stable, and good anti-jamming performance, meet the electric power system testing requirements.

Design of the Comprehensive Experimental Platform for Testing Technology Based on Virtual Instrument

2012 ◽  
Vol 151 ◽  
pp. 646-650
Author(s):  
Guang Jun Chen ◽  
Bing Bing Yan ◽  
Hai Yan Chen ◽  
Wei Guo
Keyword(s):  
Virtual Instrument ◽  
Developed Countries ◽  
Noise Signal ◽  
Signal Spectrum ◽  
Experimental Platform ◽  
Labview Software ◽  
Testing Technology ◽  
Instrument Technology ◽  
Analysis System ◽  
Future Direction

Virtual Instrument Technology represents the future direction of development of the instrument. At present, it is very popular that Virtual instrument is applied to test technology experiment in developed countries. The virtual integrated experimental platform of testing technology was designed based on the LabVIEW software, including signal generator, signal superimposed meter, digital filters, signal spectrum analyzer, noise signal detection and analysis system. The comprehensive experimental platform can replace the traditional equipment and can easily extend its functionality. It can provide students with a virtual integrated experimental platform.

Vibration Monitoring System Design

2014 ◽  
Vol 1027 ◽  
pp. 325-330
Author(s):  
Wen Xing Li ◽  
Meng Jia
Keyword(s):  
Fault Diagnosis ◽  
Virtual Instrument ◽  
Computer Software ◽  
Development Trend ◽  
Vibration Monitoring ◽  
Vibration Test ◽  
Test Analysis ◽  
Development Platform ◽  
Data Acquisition Card ◽  
Analysis System

Along with the computer software technology, the virtual instrument is gradually become the development direction of the test area. The realizing vibration test which is analyzed by adopting the virtual instrument has become the development trend of vibration test. It firstly introduces relevant simulation technology theory, the principle of fault diagnosis, the significance and the development present situation. Then according to the research for the development current situation of condition monitoring and fault diagnosis at home and abroad, it puts forward the vibration test analysis system composed the necessary sensors, signal disposal device and data acquisition card. At last it uses labwindows software produced in NI to do the development platform.

The Test and Research of Starting Speed Base on LabVIEW and Infrared

2013 ◽  
Vol 416-417 ◽  
pp. 1039-1042
Author(s):  
Xiao Wei Xiong
Keyword(s):  
Data Storage ◽  
Virtual Instrument ◽  
Low Cost ◽  
Test Point ◽  
Distributed Monitoring ◽  
Reliable Operation ◽  
Labview Software ◽  
Sample Data ◽  
Instrument Technology ◽  
Starting Speed

In order to study the starting speed athletes sprint speed ,the paper design a distributed monitoring system. System sample data of speed by micro-controller and peripheral circuits , data of test point speed transmit to the PC through the RS 485 bus,programmed using LabVIEW software on the PC side realize data storage of detection each point speed, processing, display and remote monitoring. The micro-controller and virtual instrument technology combined with the application, to overcome the conventional athletes speed detection shortcomings of the prevailing and difficult to remote observations. Experimental results show that the system is low cost, high accuracy, stable and reliable operation.

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