What sample rate should I use if I am measuring whole body vibration?
Strict ISO8041 compliance imposes a minimum sample rate of 900 samples per second. This ensures the amplitude and phase characteristics of the applied weightings meet the required criteria. To take account of the anti alias hardware filter we would recommend 1200 samples/second. If non-strict compliance is used the minimum sample rate is 300 samples/second.
ISO2631-1 recommends a minimum data duration of 227 seconds. However, for greater reliability, 600 seconds is now considered essential. That is, a 600 second or longer signal will be more representative and will provide better quality results.
The following two tabs change content below.
Dr Mike Donegan
Senior Software Engineer at Prosig
Mike graduated from the University of Southampton in 1979 and then went on to complete a PhD in Seismic Refraction Studies in 1982. Mike then joined Prosig as a special applications engineer. He spent forty years at Prosig, researching & developing new algorithms and assisting customers with data analysis issues, until his retirement in 2024.
Latest posts by Dr Mike Donegan (see all)
- How Do I Measure Whole Body Vibration? - March 20, 2015
- Sampling and Filtering Data for ISO8041 Compliance and Human Body Vibration Data Weighting - July 10, 2014
- What is Auto Spectral Density? - March 12, 2014
