Question about acceleration units of measure

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84dime
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Joined: Wed Mar 25, 2020 3:07 pm

Question about acceleration units of measure

Post by 84dime » Wed Mar 25, 2020 3:36 pm

Hello I am very new to the picoscope as well as measuring acceleration. My question is the unit of measure for acceleration a linear scale? For example if I am getting say 10mg from the seat track while the engine is running with OEM engine mounts, then i put some harder engine mounts in the vehicle and I am now getting 20mg is the vibration double of what OEM mounts would be? Thank you for any help.

Steve Smith
Pico Staff Member
Pico Staff Member
Posts: 815
Joined: Sun Aug 25, 2013 7:22 am

Re: Question about acceleration units of measure

Post by Steve Smith » Thu Mar 26, 2020 8:35 am

Hello and thank you for the post

The scale for measurement of acceleration with our NVH software is linear for mg and m/s2

We also have the option to change the units to dBg (log scale) if required
ADVANCED OPTIONS.png
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Using the linear scale, 20 mg is double the vibration level of 10 mg assuming the test conditions for both measurements (new and old engine mounts) were exactly the same

I hope this helps, take care.....Steve

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