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48
HA0378T Rev C Feb 2019
Chapter 5
As the resonance frequency of actuators varies with load in addition to the minor
variations from product to product, the notch filter is tuneable so that its characteristics
can be adjusted to match those of the actuator. In addition to its centre frequency, the
bandwidth of the notch (or the equivalent quality factor, often referred to as the Q-
factor) can also be adjusted. In simple terms, the Q factor is the center frequency/
bandwidth, and defines how wide the notch is, a higher Q factor defining a narrower
("higher quality") notch.
Optimizing the Q factor requires some experimentation but in general a value of 0.2
to 5 is in most cases a good starting point.
The
Center Frequency
is specified in Hz in the range 20 to 500.
The
Q Factor
is specified in the rage 0.2 to 100.
To enable the notch filter settings check the Enable box.