ProfiMessage
9.2.5 Characteristicvalues
VibrationsignalrecordingsareinitiallysavedtoabufferwithintheI/Omodule.
OptionsareavailabletothenperformanFFTanalysisortocomputeafrequency
spectrum.Itisthenpossibletocalculatevariouscharacteristicvibrationvalues
fromthevibrationsignaland/orthefrequencyspectrum.
Oneormoreadditionalcharacteristicvaluechannelsareavailableforeachana-
logueinputchannel.Thesethendelivercharacteristicvaluesforvibrationdata
(e.g.rootmeansquare,aspectrum'speakamplitudeetc.).
Properties
l 1to30characteristicvaluechannelscanbesetup/createdseparately(for
eachanalogueinput)
l Simpleconfigurationusingselectionlists
l Automaticassigningtosourcechannel
Characteristic values
No.
Characteristic
value
Type Note
1
Peak-to-peak
value
T Differencebetweenmaximumandminimum
2 Artihm.Average T orDCcomponent
3
Truerootmean
square(TRMS)
T —
4
Frequencyofthe
mainvibration
F Frequencyofthespectrum'speakamplitude
5
Amplitudeofthe
mainvibration
F Spectrum'speakamplitude
6 Rotationspeed T Frequency/rotationspeed
7
Phaseofthemain
vibration
T,F —
8
Amplitudeofthe
1Xvibration
F
Amplitudeofthesinglerotationalandsyn-
chronousvibrationcomponents
9
Phaseofthe1X
vibration
T,F
Phaseofthesinglerotationalandsyn-
chronousvibrationcomponents
10
Amplitudeofthe
2Xvibration
F
Amplitudeofthedoublerotationalandsyn-
chronousvibrationcomponents
259
Delphin Technology AG
Dezember 2015
ProfiMessage Manual