在光化學煙霧物理模擬的實驗中，需要設計并建立一套可靠的數(shù)據(jù)采集系統(tǒng)，實現(xiàn)對
實驗數(shù)據(jù)的讀取、分離、處理、顯示、記錄等操作。我們采用圖形化編程語言LabVIEW 編制的數(shù)據(jù)采集系統(tǒng)軟件，能自動完成對光化學過程的反應條件和反應中各種物質(zhì)濃度長時間連續(xù)采集，并能在線反映各種參數(shù)隨時間的變化。本文介紹了系統(tǒng)的硬件組成和軟件設計，以及保證系統(tǒng)穩(wěn)定性方面采取的一些措施，并對其可用性進行檢驗。
關鍵詞：光化學煙霧，物理模擬，數(shù)據(jù)采集系統(tǒng)，LabVIEW
Abstract: A reliable data acquisition system was designed and developed for the physical
simulation of photochemical smog, which is used to input, separate, manage, display and record the experimental data. The soft in this system, programmed by graphic language LabVIEW, could not only automatically acquire reaction conditions and concentrations of all kinds of species in long-time photochemical process, but also show the on-line change of parameters. The hardware and software of this system as well as some measures for keeping the system more stable are introduced in this paper，which were verified in experiment.
Key words: photochemical smog, physical simulation, data acquisition system, LabVIEW