Page 4
Hand ARM (HARM) Vibration Direction
For Hand Arm vibration (GA2003 Only), the three axes being measured can
be measured in any orientation; however it is recommended that the
suggested axes indicated in the figure below are used. If this is not possible,
then choosing other axes orientation is permissible and will not affect your
measured data.
In all cases it is strongly recommended to make notes on the axes used
relative to the vibration source. This information will be required if vibration
control is to be implemented on the vibration source.
Transducer Mounting
If your Pocket Vibration meter is supplied with a spike probe this can be used
for the interface of the transducer to the vibration source.
Mounting of the single axis accelerometer to the vibration source can also be
achieved by tapping a stud into the vibration source and attaching the
accelerometer to the stud. Alternatively the stud may be adhered to the
device with an adhesive that dries rigid. Castle Group Ltd can supply a glue
and stud pack if required, (order code K01215).
