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发表于 2006-7-17 19:07:50
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我的翻译,have a try!
The appearance of virtual instruments,which has an important influence on the development of technology and industrial production, is a momentous revolution in the development history of instruments.The virtual instrument is one of the newest directions in the development of instruments,which is an important field of information technology.So it has a practical significance to do research on signal detections and system analyses.
On the foundation of having compared different hardware development platforms for virtual instruments,according to the assignment of this task,this article,with the use of LabView as the software development platform,chooses the hardware development platform based on the PC-DAQ card.using a special signal condition circuit ,an automatic testing system on the basis of virtual instrument techniques is designed. This system improve the productional condition of the onerous and inefficient tasks in the testing of preamplifier circuit board of our college.Using this automatic system designed by this article,we can accomplish test tasks such as data collection, signal disposal, data disposal and printing output.Data collection and disposal are accomplished by hardwares.While described the design of the signal condition circuit in the portion of hardwares,data calculation, data eligibility test and printing output are finished in the portion of softwares.This article accomplish the design of softwares mostly,and accomplish the design and simulation of circuits of signal disposal hardware at the same time.Based on the above studies,the article does research on the software development of the virtual oscillograph. |
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