針對工程領(lǐng)域中對瞬態(tài)過程參數(shù)測量的需求，本文應(yīng)用虛擬儀器技術(shù)，設(shè)計并實現(xiàn)了
動態(tài)參數(shù)自動測試處理系統(tǒng)。首先比較了虛擬儀器的四種體系結(jié)構(gòu)，并根據(jù)實際測試的要求，提出了調(diào)理程控、遠(yuǎn)端采集的方案；然后給出了系統(tǒng)軟硬件的設(shè)計與實現(xiàn)，同時給出了實現(xiàn)各通道同步觸發(fā)及校準(zhǔn)的方法。動態(tài)參數(shù)測試處理系統(tǒng)實現(xiàn)了多路非電量動態(tài)信號的自動化測試及處理，減少了測試過程中的人為誤差，有效提高了測試效率和測試精度。
關(guān)鍵詞：虛擬儀器；動態(tài)信號；自動測試系統(tǒng)
Abstract: In order to meet the testing requirements of dynamic signals, the design and realization of dynamic parameter testing and processing system based on Virtual Instrument (VI) technology are discussed in this paper. First, several kinds of VI architectures were compared, and the scheme of programmable conditioning and distant sampling was proposed, which met the practical requirements; then, the system’s software and hardware realization was presented as well as the channel trigger and calibration. The system realizes the automatic testing and processing of multi-channel non-electronic dynamic signal, and the human error is decreased, meanwhile, the testing efficiency and testing precision are improved effectively.
Keywords: virtual instrument; dynamic signal; automatic testing system