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Difference between revisions of "Human Vibration"
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The <math>a_v</math> is the total RMS vibration value of the weighted acceleration signal. This value will | The <math>a_v</math> is the total RMS vibration value of the weighted acceleration signal. This value will be automatically calculated with Aw indicator if a sensor has been defined in the definition of direction window. | ||
For each tri-axial sensor, the <math>a_v</math> will be calculated as a quadratic average of the weighted RMS value in the three directions :<br><br> | For each tri-axial sensor, the <math>a_v</math> will be calculated as a quadratic average of the weighted RMS value in the three directions :<br><br> | ||
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With <math>k_{X,Y,Z}</math> a factor defined in the ISO 2631 as <math>k_{X}=k_{Y}=1.4</math> and <math>k_{Z}=1</math> | With <math>k_{X,Y,Z}</math> a factor defined in the ISO 2631 as <math>k_{X}=k_{Y}=1.4</math> and <math>k_{Z}=1</math> | ||
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======Ah====== | ======Ah====== | ||
The <math>A_h</math> is the RMS of the <math>W_h</math> weighted acceleration signal for hand-arms vibration measurement. For each channel, the <math>A_h</math> and <math>A_h(T)</math> will be calculated. The <math>A_h(T)</math> is the Daily exposure value, defined as : <br><br> | The <math>A_h</math> is the RMS of the <math>W_h</math> weighted acceleration signal for hand-arms vibration measurement. For each channel, the <math>A_h</math> and <math>A_h(T)</math> will be calculated. The <math>A_h(T)</math> is the Daily exposure value, defined as : <br><br> | ||