Based On The Liquid Chromatography Labview Virtual Instrument And The Simulation Signal System Design

This work is based on LabVIEW software design platform, simulation liquid instrumentSettings panel and flow of liquid chromatography figure was simulated. The American NIcompany LabVIEW software is launched a using graphical programming language programdesign system, and provides rich function, with a strong signal processing function, easy tooperate, programming mode is simple, intuitive, is widely used in various industries.This study, based on LabVIEW virtual instrument programming system, the developmentof the simulation, the liquid velocity Settings panel and simulation performance liquidchromatography figure of virtual instrument. Liquid Settings panel mainly throughprogramming, function and operation operation, which realizes user instructions of input andoutput functions, multivariate mixed mobile phase flow control, to form a gradient elution andvery good to simulate the practical instrument panel. Realize simulation performance liquidchromatography figure, set up with normal function is the foundation of the simulationperformance liquid chromatography figure simulation, mathematical model of superpositioncombination waveform (multiply), added a noise in technology, may to the chromatographicpeak form to decorate, especially when chromatogram separation effect between peak andmiddle sister is bad, can further adjust peak form, make all the peak get separation, in thechromatographic data processing has good application value, test results show that the peaknumber increased continuously, different separation effect, and constantly setting caneventually make the peak separated, separation effect is obvious. To achieve the collection tochromatographic signal with high peak, half peak width, the calculation of peak area ofchromatographic peak components can figure is data processing.Through the multiple instances test, to run the program results are accurate, reliable, andthe data processing and the results show intuitional, program design is simple and modular,human-computer interaction and logical relation between the strong and the requiredfunctions are realized, achieve a strong interface the simulation results, and thus well applied in subsequent instrume nt development software system.