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

Balancing history

This tool shows in a clear way the resulting unbalance vibrations after mass changes for each balancing run. The vibration behavior is also shown a graphics.
Balancing history


1. Diagram
The graphics shows magnitude and angle of the measured vibration for each balancing run. The abbreviations are explained in the table below.
The diagram can be zoomed in and out by using these buttons .

List of measuring runs

2. List of measuring runs
The table lists the balancing runs and shows for each one the mass changes and the resulting vibration.
Mass changes can be listed twice: as reversal of a previous correction (first entry) and as change from the current run (second entry).
A mouse click into a row highlights the run in the diagram.


3. Separator
Use the mouse pointer to adapt the space for the diagrams.

Save / load history

4. Save / load history
VM-BAL can save balancing sessions including measuring data and settings.
  • This feature can be used to interrupt a balancing session and to continue it later at the same point.
  • It is also useful to archive balancing sessions and to reuse the information for later balancing sessions.
  • The rotor dynamics data obtained in the test runs can be saved. A future balancing session can load this data and skip the test runs.
  • Saved history files can be sent by e-mail in order to consult specialists in complicated situations. These files can be opened and inspected in the VibroMetra Simulator.

Switch between unbalance values

5. Switch between unbalance values
The measured imbalances can be displayed in different units. Apart from the measurands vibration acceleration, vibration velocity and vibration displacement, unbalance mass (g), unbalance (gmm) and balancing quality (mm/s) are selectable. The values in the table and the diagram are updated corresponding to the selection.
If the balancing quality is greyed out, no rotor mass and speed are entered in rotor data.