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### Author Topic: Unit of measurement for accelleration  (Read 2185 times)

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#### rrc1962

• 673
##### Unit of measurement for accelleration
« on: November 21, 2010, 11:51:20 AM »
On motor tuning when you set acceleration of say 50, what unit of measurement is that?  I think it's ??/sec, but I can't remember.

Thanks

#### Hood

• 25,838
• Carnoustie, Scotland
##### Re: Unit of measurement for accelleration
« Reply #1 on: November 21, 2010, 12:57:10 PM »
It is units (mm or inch) per second per second.
Hood

#### rrc1962

• 673
##### Re: Unit of measurement for accelleration
« Reply #2 on: November 21, 2010, 01:16:19 PM »
Can't seem to get my head wrapped around it.  How would to write it out as a mathematical formula if the accell were 50 and the velocity were 500?  What I'm trying to do is come up with the time it takes to accelerate from 0 to 500IPM with an acceleration setting of 50.

Thanks

#### Hood

• 25,838
• Carnoustie, Scotland
##### Re: Unit of measurement for accelleration
« Reply #3 on: November 21, 2010, 02:03:07 PM »
Oh man its a Sunday evening here, my brain struggles to work at the best of times let alone Sundays
Ok so acceleration = velocity/time
so Vel/Accel = time
Velocity = 500IPM so divide by 60 to get Inch per second = 8.333333333
Accel = 50 inch/s/s
so
8.33333/50 = 0.16 seconds

Hope thats right

Hood

#### rrc1962

• 673
##### Re: Unit of measurement for accelleration
« Reply #4 on: November 21, 2010, 02:22:55 PM »
Thanks very much Hood.  Makes sense now.