Cooper-instruments-systems Dytran 5340 USB Triaxial Accelerometer Uživatelský manuál stáhnout pdf (Strana 8)

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REVB10/18/12,ECN8972

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8

Currentplotdatacanbeexportedtoaselectedtab‐delimitedfileforconvenientimportingin

aspreadsheetorotherapplicationsuchastheVibraScoutPostProcessor.Thisfeature

providesanalternativetothedatalogfilebyallowingtheusertoexportdataafter

acquisition.

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3. DeviceInfo

Model # and Serial #  are stored in the device EEPROM and read when the VibraScout™

applicationislaunched.Devicememoryisalsoavailabletostoreuserinformation.Enterup

to180charactersintheUserInfofieldandclickonSaveUserInfotostoretheinformationin

non‐volatilememory.WhenVibraScout™islaunched,theinformationwillbereadfromthe

deviceandappearintheUserInfofield.

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4. ApproximateBandwidth

Select the desired bandwidth based on the application requirements.The noise level

increaseswithbandwidth, soselectingalowerbandwidthwillprovideimprovedsignal/noise

at the expense of frequency response.The 7543A sample rate is equal to approximately

twice the selected bandwidth.In cases where data overflows occur due to inadequate

systemresources(CPUspeed,RAM),selectingalowerbandwidthwillusuallyeliminatethe

overflows.SeethesectionontheDataIntegrityindicatorformoreinformation.

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5. DataFileSettings

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TheDataFilepathisselectedwiththeBrowsebutton.Dataaresavedastab‐delimitedtext

for easy importing into a spreadsheet or other application when the Log To File box is

checked in the Acquisition screen. Software automatically appends date and time code to

theendofthefilenameforeasieridentificationoftestsequence.Datafileisclosedandthis

fieldisclearedeverytimeacquisitionisstopped.SelectingtheLog ToFileboxwillprompt

userforcreatinganewdatafile.

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6. Offsets

The 7543A is calibrated at the Dytran factory along each orthogonal axis using precision

fixturesandearth’sgravity.Whenthe 7543A isplacedatanyrandomposition,theOffsets

Acquirebuttonallowsthevaluesforthethree accelerationaxespitchandrolltobecaptured

and set to zero.Therefore,

relative measurements may now be made from that position.

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Cooper-instruments-systems Dytran 5340 USB Triaxial Accelerometer Uživatelský manuál Strana 8