SIRIUS® Modular
Modular Data Acquisition (DAQ) System
Human Body Vibration - ISO 2631Whole-body and hand-arm vibration measurement
The human and whole-body vibration solution is used to test and measure the effect of vibration on the human body. The extracted parameters allow the simple assessment of the injuries risk for workers, exposed to constant vibration. Whole-body and hand-arm vibration measurements are supported according to all relevant international standards - ISO 5349, ISO 8041, ISO 2631-1, and ISO 2631-5.
Highlights
Supported Standards
Our solution calculates and measures whole/body vibration according to international standards ISO 5349, ISO 8041, ISO 2631-1, and ISO 2631-5.
Whole Body Vibration
Applicable to motions transmitted from workplace machines and vehicles to the human body through a supporting surface.
Hand Arm Vibration
Sensors are installed on special adapters for holding them on a handle or between fingers.
Advanced Math
All data like RMS, Peak, Crest, VDV, MSDV, MTVV, Weighted raw, al(ISO 2631-5), D(ISO 2631-5) are available.
Data Analysis
Limitless combination with other standard tools of Dewesoft is a great base for R&D work related to the reduction of vibration due to its deep data analysis functionality.
Software included
Every Dewesoft data acquisition system is bundled with award-winning DewesoftX data acquisition software. The software is easy to use but very rich and deep in functionality. All software updates are free forever with no hidden licensing or yearly maintenance fees.
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Whole Body Vibration Measurement
Human exposure to whole-body vibrations should be evaluated using the method defined in ISO 2631-1:1997. Whole-body vibration is applicable to motions transmitted from workplace machines and vehicles to the human body through a supporting surface. For health and safety evaluations, this is through the buttocks and feet of a seated person or the feet of a standing person.
The Dewesoft whole-body solution supports measurements on the whole-body and hand-arm.
Hand-arm Measurement
Hand-arm vibration is experienced through the hand and arm. Daily exposure to hand-arm vibration over a number of years can cause permanent physical damage, usually resulting in what is commonly known as “white finger syndrome”, or it can damage the joints and muscles of the wrist and/or elbow.
Measurement of hand-arm vibration refers to three main causes:
when the operator's hands have direct contact with the surface of the vibrating machine (steering wheel or handle),
when the operator feeds the machine with the material through which the vibration is transmitted to a hand (woodcutting),
when the operator holds the vibrating device in his hands (drills, pneumatic hammers).
Calculated Vibration Parameters
Parameters can be calculated either as overall values, which means that we have only one value at the end of the measurement, and/or interval logged values. If we have an interval logged value, the time interval for logging is defined in seconds.
RMS - a statistical measure of the magnitude of a weighted signal
Peak - maximum deviation of the signal from the zero line
Crest - the ratio between the peak and RMS
VDV - fourth power vibration dose value
MSDV - motion sickness dose value
MTVV - maximum transient vibration value, calculated at a one-second interval
Measurement of SEAT - Seat Effective Amplitude Transmissibility
The determination of SEAT does not directly give information about human exposure to vibration. The goal of the measurement is to determine the capability of a seat design to attenuate the vibrations present in a vehicle - to protect the driver from excessive vibrations.
The measurement, therefore, involves a determination of the vibration magnitude at two positions (SEAT is computed as the ratio between these two magnitudes):
On the seat pan
Directly on the floor of the vehicle right underneath the seat.
Lumbar Spine Measurement
The adverse health effects of prolonged exposure to the vibration that includes multiple shocks are related to dose measures.
The calculation of the lumbar spine response described in ISO 2631 assumes that the person subjected to the vibration is seated in an upright position and does not voluntarily rise from the seat during the exposure. Different postures can result in different responses in the spine.
The determination of the spinal response acceleration dose involves the following steps:
calculation of the human response
counting of number and magnitudes of peaks
calculation of an acceleration dose by application of a dose model related to the Palmgren-miner fatigue theory
Application Note Whole-body Vibration Measurement on a Motorbike
You can read more details about human body vibration measurement in our application note.
The riders have experienced some hand pain after the long rides. We set out to investigate the levels and volumes of human body vibration produced by our motorbike. We don’t want the health of our teammates to be compromised.
Read the human vibration measurements on a motorbike application note.
Additional Human Body Vibration Resources
Human body vibration online PRO training course
Human body vibration DewesoftX online software manual
Got Questions? We've Got Answers!
We've gathered all the answers you're looking for, neatly organized just for you.
Human vibration is defined as the effect of mechanical vibration of the environment on the human body. During our normal daily life, we are exposed to various sources of vibration, for example, in buses, trains, and cars. Many people are also exposed to other vibrations during their working day, for example, vibrations produced by hand tools, machinery, or heavy vehicles.
See the Dewesoft human body vibration solution.
Whole-body vibrations are measured with the help of the so-called seat sensor, where we need to install the triaxial vibration sensor in the rubber adapter on which we sit. It is important that the z-axis is in a vertical direction since it is weighted differently than x and y.
See the Dewesoft human body vibration solution.
The Dewesoft human body solution calculates and measures whole/body vibration according to international ISO standards - ISO 5349, ISO 8041, ISO 2631-1, and ISO 2631-5.
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