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Profi
Message
Frequency
in Hz
Rotation speed
in rpm
Pulse interval
in ms
evaluated periods
20000
—
0.05
20000
30000
—
0.033
30000
The following applies to the range >100 to 30 kHz: Lower gate times enable meas-
urement data to be updated faster. Higher gate times provide higher res-
olution/measurement precision.
Gate time
in milliseconds
Resolution
in Hz
5000
0.2
2000
0.5
1000
1
500 ...
2
250
4
9.2.7
Measuring of phase angle
Phase angle measurement is useful only for low fre-
quencies/rotation speeds. The evaluation procedure
(see below) shows why. See also
Phase of 1X/2X/3X/xX vibration
.
Phase angle definition
The phase angle definition corresponds to a sine definition associated with a trig-
ger point. Conversion to a cosine definition is explained below.
The following example has two signals. Two signal periods are acquired. Signal 1
has a phase angle of 0 degrees. Signal 2 has a phase angle of 90 degrees. Mark 3
shows the trigger point.
278
Delphin Technology AG
Dezember 2015
Profi
Message Manual
Summary of Contents for ProfiMessage
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Page 31: ...ProfiMessage 3 5 4 ADIT 31 Delphin Technology AG Dezember 2015 ProfiMessage Manual ...
Page 32: ...ProfiMessage 3 5 5 ADVT 3 5 6 AMDT 32 Delphin Technology AG Dezember 2015 ProfiMessage Manual ...
Page 33: ...ProfiMessage 3 5 7 DIOT 3 5 8 IOIT 33 Delphin Technology AG Dezember 2015 ProfiMessage Manual ...
Page 314: ...ProfiMessage 314 Delphin Technology AG Dezember 2015 ProfiMessage Manual ...
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