Manfred Weber
Metra Mess- und Frequenztechnik in Radebeul e.K.
PC Vibration Measurement System VibroMetra

Memory depth

 
VM-SCOPE stores 10 million samples per channel. The use of this memory can be controlled in the Memory depth menu. If, for example, 40 kHz bandwidth are needed, VM-SCOPE will store about 100,000 samples per second. We assume that the measuring time is 10 seconds which results in 1 million samples. If VM-SCOPE averages 10 measurements the memory of 10 million samples will be filled completely.
Memory depth
1

Maximum signal frequency

 
1. Maximum signal frequency
This is the highest frequency for the band filter. The band filter can always be set to lower frequencies. VM-SCOPE ensures that the signal will always be free of aliasing effects.
2

Maximum posttrigger time

 
2. Maximum posttrigger time
The maximum duration of measurement starting at the trigger event. It can always be set to lower values during measurement.
3

Maximum number of averages

 
3. Maximum number of averages
Maximum number of averaged measurements.  It can always be set to lower values during measurement (only oscilloscope mode).
4

Confirm settings

 
4. Confirm settings
After making above settings click this button to check whether the available memory is sufficient. Measurement cannot be started before confirmation.
5

Maximum memory usage

 
5. Maximum memory usage
The bar graph indicates how much memory will be used with your settings.