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  打砂锅的拳头 2008-06-10 00:00:00

  The progress of computer technology is a symbol of morden technological progress.

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  cm1958888 2008-06-08 00:00:00

  好像是啊

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  wokeyiba 2008-06-08 00:00:00

  对TM个P

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  tfenwqben2946 2008-06-08 00:00:00

  正确

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  董建终 2008-06-08 00:00:00

  ...我不行挨，

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  一生皓首白头o 2008-06-18 00:00:00

  The computer technology represents development in modern technology. The ever-evolving computer technology helps revolutionize every aspect of production techniques in every other field. The virtual instrument technology that based on computer technology now is promoting reforms on measurement and control technology by the powerful force. The concept of virtual instrument technology not only promotes the improvement of measurement and control system based on instruments， but also affects the revolution of the traditional structure method of monitoring and control system with mainly data collection. The emergence of virtual instrument， completely changed the idea of the traditional instrument， opened a new era of measurement and control technology. This paper includes introducing of the concept of virtual instrument technology and bus technology， summarizing of the characteristics and application of virtual instrument， discussing of the current situation and prospects of its development， introducing of the function and application method of LabVIEW and use it to produce oscilloscopes， function waveform generators， spectrum analyzers， and other basic applications， and in the final draw of the virtual instrument in relation to the advantages of traditional instruments. This paper is designed by LabVIEW8.2 CN software which is used most extensive and with the most powerful function in virtual instrument technology field. This version is LabVIEW 20th anniversary commemorative edition which is produced in August 2006， it is a newer version at present. The virtual Instrument technology has the following features compared with traditional instrument: Enrich and reinforce the function of traditional instrument; Give prominence to the concept “The software is the instrument”; The instrument is defined by users; The industry standard is open; It is convenient for composing complicated testing system; Fine economic efficiency; Technical updating is fast; Be reusable and can realize network testing. All these features are the advantages of virtual technology compared with traditional instrument. The rise of virtual instrument is a revolution in measuring instrument technology， is a new milestone in the field of instrument. It makes measurement of modern control system more flexible， more economical and more powerful. Whether measuring， testing， measurement or industrial process control and analysis， or involve more extensive measurement and control of other areas， selection of virtual instruments is the ideal solution. At present， the virtual instrument technology has been widely used and play a great role in electronics industry， machinery manufacturing， telecommunications， automobile manufacturing， biotechnology， medicine， chemical industry， scientific research， military， education and other fields，.

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