Instantel 716A0401, Руководство оператора

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Reference
MiniMate Plus Operator Manual
5–15
5.6.3. Compound Waveforms
If the record exhibits interference by two or more predominant frequencies then the maximum
displacement will be the sum of the maximum of each individual frequency component.
T
A
T2
T1
A2
A1
Figure 5.17 Manual Waveform Calculations on Compound Waveforms.
a. Calculating Displacement:
Maximum Displacement (in.) =
T
2
A
T
2
A
1
1
2
2
π π
× + ×
Maximum Displacement (mm) =
T
2
A
T
2
A
1
1m
2
2m
π π
× + ×
b. Calculating Acceleration:
Maximum Acceleration (in./s
2
) =
2
T
A
2
T
A
1
1
2
2
π π
× + ×
Maximum Acceleration (mm/s
2
) =
2
T
A
2
T
A
1
1m
2
2m
π π
× + ×
5.6.4. Irregular Waveforms
Figure 5.18 Manual Waveform Calculations on Irregular Waveforms.
a. Calculating Displacement:
Maximum Displacement = area under curve measured by a planimeter.