Spider DSA User’s Manual
284
Figure 193: Test Configuration for Order Tracking
The Right side of this page deals with the tachometer settings.
Reference Tachometer Channel: Identifies the Reference Tachometer
channel that is used for calculating the Order spectrum, Order Tracking. This
setting is only useful when using a 7.4 hardware unit in which one of the two
tachometer channels can be used as a reference tachometer channel. In the 7.5
hardware units, the Tachometer channel 1 / Output channel 1, is always used as
the Reference Tachometer.
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