The noise measurement and analysis system of optoelectronic coupled devices based on virtual instrument

A measurement and analysis system is designed base on the requirement of digital upgrade to the KY231 Material strain tester. This system is made up of two parts :The analyze system based on the LABWINDOWS and the measurement system based on STM8S207. The physical quantities (such as stress, pressure, deformation, etc.) of the metal specimen are acquired, displayed and analyzed digitally in this system, meanwhile the experimental data and curves can be stored in the systerm and compared to the historical data saved in the previous files. Because the USB interface is too complex to the MCU systerm form the aspart of the programming and circuit design, the PL2303 is used to simulate USB interface as virtual RS232 for the communication between the measurement system and the analyze system.

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Development of the Measurement and Analysis System of Nanoparticles Size Distribution

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.121-122.168 ◽

2010 ◽

Vol 121-122 ◽

pp. 168-171 ◽

Cited By ~ 1

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.

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

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.889-890.726 ◽

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.

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Parameter Measurement and Analysis System of Multi-Phase Electric Machine Using Labview-Based Virtual Instrument

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.503-504.1381 ◽

2012 ◽

Vol 503-504 ◽

pp. 1381-1384

Author(s):

Yu Qi Rang ◽

Qiang Wu ◽

Guang Wei Meng ◽

Zhan Qing Yang

Keyword(s):

Virtual Instrument ◽

High Performance ◽

Measurement Data ◽

Automatic Measurement ◽

Parameter Measurement ◽

Report Generation ◽

Measurement And Analysis ◽

Hardware Configuration ◽

Analysis System ◽

Multi Phase

This paper introduces an automatic parameter measurement and analysis system of multi-phase electric machines based on Labview, presents the system hardware configuration, designs the various measuring and analysis modules, discusses the algorithm including automatic measurement, data analysis and report generation and implements the multi-channel and high-performance parallel data acquisition. Compared with the old methods, it has many advantages such as more flexible software application, higher measuring accuracy and simpler hardware configuration.

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A New Portable Meter for Noise Measurement and Analysis

The Journal of the Acoustical Society of America ◽

10.1121/1.1915617 ◽

1933 ◽

Vol 5 (1) ◽

pp. 39-45 ◽

Cited By ~ 5

Author(s):

W. O. Osbon ◽

K. A. Oplinger

Keyword(s):

Noise Measurement ◽

Measurement And Analysis

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Compact USB measurement and analysis system for real-time fluctuation enhanced sensing

2011 21st International Conference on Noise and Fluctuations ◽

10.1109/icnf.2011.5994350 ◽

2011 ◽

Cited By ~ 1

Author(s):

Robert Mingesz ◽

Zoltan Gingl ◽

Akos Kukovecz ◽

Zoltan Konya ◽

Krisztian Kordas ◽

...

Keyword(s):

Real Time ◽

Measurement And Analysis ◽

Time Fluctuation ◽

Analysis System

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Effect of Pantograph and Bogie on Interior Noise of High-Speed Train in Tunnel

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.664.191 ◽

2013 ◽

Vol 664 ◽

pp. 191-196

Author(s):

You Gang Xiao ◽

Yu Shi

Keyword(s):

High Speed ◽

Sound Pressure ◽

Broad Band ◽

Pressure Level ◽

Channel Noise ◽

High Speed Train ◽

Noise Sources ◽

Vehicle Noise ◽

Measurement And Analysis ◽

Analysis System

For clarifying the noise in tunnel affected by pantograph and bogie, which are the most important noise sources, the noises near pantograph and bogie in a high-speed train were tested by multi-channel noise measurement and analysis system in tunnel, and compared with those measured outside the High-speed train and on an open field. The results show that the interior vehicle noise is spatially non-homogeneous in the whole carriage, the larger sound pressure level (SPL) near pantograph are next to ceiling, and near bogie next to floor. The noise spectra show a broad band feature, and dominated by the frequency contents among 100Hz-2kHz, so the countermeasures against noise should be within these range.

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