Unipulse F381A - Measurement Data

51
4 SETTINGS AND CALIBRATIONS
51
SETTINGS AND CALIBRATIONS
Chapter
4
■Measurement data
・The sampling rate is fixed at 4000sps (samples per second).
・Measurement is carried out at 4000sps, but the data kept in a waveform is 2000 pieces per the
Measurement Length. (Maximum data: 2048)
Therefore, the waveform resolution is the Measurement Length/2000.
When the Time/Displacement Change setting is Time
During measurement, the load is sampled at 4000sps, and after completion of the measurement, the
load by resolution is kept in a waveform.
Example) When the Measurement Length is 1.0s
When the Time/Displacement Change setting is Displacement
The load and displacement are sampled at 4000sps, and the load is kept in a waveform every time
the displacement advances.
Example) When the Measurement Length is 4000mm
When the displacement returns, all the data of the corresponding load is recognized as that of the
previous displacement.
Example) When the displacement returns
Load
Time
These data are kept
250μs
Resolution(0.5ms)
in a waveform.
Resolution (0.5ms)
2.0ms 2.5ms 3.0ms
Load sampling: 4000sps (every 250μs)
○ Load sampled by 250μs
● Load kept in a waveform
250μs 250μs 250μs 250μs250μs
Load
Displacement
These data are kept
Resolution (2mm)
in a waveform.
Resolution (2mm)
10mm 12mm 14mm
Load sampling: 4000sps (every 250μs)
○ Load sampled by 250μs
● Load kept in a waveform
Load
Displacement
These data are kept
Resolution (2mm)
in a waveform.
Resolution (2mm)
10mm 12mm 14mm
Load sampling: 4000sps (every 250μs)
○ Load sampled by 250μs
● Load kept in a waveform