High-Speed Data Acquisition Based on PCI-1002

Journal of Atmospheric and Environmental Optics ›› 2014, Vol. 9 ›› Issue (4): 310-315.

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High-Speed Data Acquisition Based on PCI-1002

CHENG Min1, 2, WENG Ning-quan1, 2, 3, LIU Qing1, YAO Yuan-cheng1, 2

(1 Key Laboratory of Atmospheric Composition and Optical Radiation, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
2 University of Chinese Academy of Sciences, Beijing 100039, China;
3 Institute of Environmental Science and Photoelectric Technology, University of Science and Technology of China, Hefei 230022, China )

Received:2013-10-24 Revised:2013-11-15 Online:2014-07-24 Published:2014-07-24

Abstract

Abstract:

Micro-thermometer is an important tool to measure the refractive index structure constant. The rapid change of atmospheric temperature is the measuring object, so accurate and effective signal collection of temperature fluctuation is the precondition of demarcating micro-thermometer successfully. In view of two-channel wind tunnel micro-thermometer calibrating system, the multiple-channel data acquisition program is programed based on PCI-1002 acquisition card. With the combination of high-precision timer of Windows operation system and MFC programming frame, the accurate and efficient multiple-channel acquisition to temperature fluctuation signal is performed, and the data sets are displayed, stored and computed in computer systems at the same time. The results show that by using high-precision timer of Windows system, the data gathering program works properly and can provide a reliable support for micro-thermometer experiment.

Key words: data acquisition, PCI-1002 acquisition card, multiple-channel, windows timer

CLC Number:

TN911.72

CHENG Min, WENG Ning-Quan, LIU Qing, YAO Yuan-Cheng. High-Speed Data Acquisition Based on PCI-1002[J]. Journal of Atmospheric and Environmental Optics, 2014, 9(4): 310-315.

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High-Speed Data Acquisition Based on PCI-1002

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