Cooper-instruments-systems Dytran 5340 USB Triaxial Accelerometer Manuel d'utilisateur télécharger pdf (Page 19)

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REVB10/18/12,ECN8972

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19

13. Re‐samplingfrequency‐Thereare7differentsettingsforre‐samplingrecordeddata:10KHz,20KHz,

30KHz,40KHz,50KHz,70KHz,and100KHz.Itisrecommendedtousethelowestavailablesamplingrate

forlongerdurationofrecordingstopreventsystemfromrunningoutofmemoryduringprocessing.

Window‐isthePSD

windowandHanningwindowisthemostcommonlyusedtoperformthePSD

calculations.

Units‐thereare2settingsforthisfield.MostcommonlyusedforPSDisEU^2/Hz.

14. Min.Frequency(Hz)–enableszoomingPSDandFFTplotstostartfromfrequencysetinthisfield.

Max.Frequency

(Hz)‐enableszoomingPSDandFFTplotstoendatfrequencysetinthisfield.

GraphType–exportsFFTandPSDplotsineitherLinearorLogarithmic.

15. Save‐Aftersettingallthere‐samplingparameters,pressthesavebuttonandsoftwarewillexportall

selectedfileformatstothe

samedirectoryastheoriginalrecordeddatafile.Aseriesofplotswillpopup

anddisappeardisplayingtheJPG,PSD,andFFTplotsasselected.

16. ExportedFilesDirectory‐Allexportedfileswillbesavedtothedirectorylistedinthisfield.Thisisthe

directoryfortheoriginal

datafileselectedin#1.

ProcessCompleted‐thisindicatorwillilluminatebrightgreenoncethesavingprocessiscomplete.Itwill

resettomattegreenwhenanewfileisselected.

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17. Exit‐onceexportiscompletedinstep15,thereare2waystoexittheprogram.PressingtheExitbutton

orfromtheFilemenuExit.

SeeFigure24‐26forcontrolsanddisplays.

Note:bothcontinueandsavebuttonswillbedisabledifnodatafileisselected.

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Figure24:DataSetupWindow

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Cooper-instruments-systems Dytran 5340 USB Triaxial Accelerometer Manuel d'utilisateur Page 19