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Copley Controls 189
C.5.3: Measuring Mechanical Vibration
There are several ways to measure mechanical vibration. Two choices are offered below.
Using an Accelerometer with CME 2
Begin with a Copley drive operational and controlled by CME 2.
1
Connect the accelerometer analog output to Copley drive’s Analog + and - on the signal
input as in the diagram below.
2
On CME 2, click the Scope Tool .
3
Select the Measurement tab, choose a channel, select Voltage, then Analog Command.
4
Perform a move.
5
After the move is complete, measure Tm (1/Fm), which is the period of mechanical
oscillation.
Using CME 2 to Monitor Following Error
Monitor the following error using CME 2’s scope option.
Begin with a Copley drive operational and controlled by CME 2.
1
On CME 2, click the Scope Tool .
2
Select the Measurement tab, choose a channel, select Position, then Following
Error.
3
Perform a move.
4
After the move is complete, measure Tm (1/Fm), which is the period of mechanical
oscillation.
For more information on using the Scope Tool go to Scope Tool (p. 153).