Band-Pass Filters - GE Bently Nevada 3300/25 Operation Manual

3300/25 Dual Accelerometer Input Monitor Operation Manual
19.14

Band-Pass Filters

A band-pass filter consists of cascaded high-pass and low-pass filters. To configure the
Band-Pass filter, follow the instructions for programming the high-pass and low-pass
filters.
The center frequency of the bandpass filter is given by:
where
f
= Band-Pass filter center frequency
BP
f
= Low-Pass filter corner frequency
LP
f
= High-Pass filter corner frequency
HP
NOTE: The low-pass corner frequency
pass corner frequency
78
f = f f ×
BP LP
f
should be four times (or more) the high-
LP
f
.
HP
HP