Frequency Weighting Filters - Castle group Excieo GA2005H Operating Manual

Frequency Weighting Filters

The human body's discomfort level to vibration alters depending on the vibration
frequency and where the vibration is in contact with the body. Your Excieo
meter therefore has the following frequency weighting filters which are applied
to the measured vibration signal using a fast, low powered digital signal
processor for superior accuracy: -
Hand Arm Vibration
Filter
Always used for Hand Arm Vibration measurement in the X, Y
Wh
and Z Axis.
Whole Body Vibration
Filter
Used for measurement of a seated or reclined person in a
Wb
railway carriage for the vertical Z Axis.
For measuring at the seat back with a seated person present
Wc
for the horizontal X Axis.
Used for measurement of a seated, standing or a reclined
Wd
person for horizontal vibrations in the X and Y Axis.
Applied when measuring rotational vibration in all directions of
We
seated people.
Used for measurement of a reclined persons vertical head
Wj
vibration in the X Axis.
Used to measure the vertical Z Axis vibration of a seated,
Wk
standing or reclined person.
Wm Applied when measuring X, Y and Z Axis vibrations, in buildings.
Machine Monitoring
Filter
Ws Vibration monitoring between 10 and 1000 Hz
Fa Vibration monitoring between 2 and 20 Hz
Fb Vibration monitoring between 2 and 250 Hz
Fc Vibration monitoring between 31.5 and 250 Hz
Suitable for monitoring at any frequency within the instruments
Fl or accelerometers tolerance and without applying high or low
frequency roll off within the linear region specified.
Description
Description
Description
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