EST

[atsakiri at ford.com]

> >  What I need to know is the
> > formula for convering mS to degrees at a given RPM.
> > 
> > Steve
> 
> uh... converting?
> 
> RPM/60         = RPS ( Rev per SECOND )
> 
> RPS/360        = degrees per SECOND
> 
>                /* note 60*360 = 21600 */
> 
> so RPM/21,600 * 1000 (ms per second)   = degrees per mS
> 
>    RPM/21.6
> 
> 
> restated at:
> 
>   to obtain degrees per milliSecond divide RPM by 21.6
>  
> quick check:
> at 8,000 RPM   =  370ms/Degree   (sounds about right. ;-)
> 
> 
> Tom "This puppy redlines at 140Hz" Walter


I think the RPS/360 = deg/second above should be RPS*360 = deg/second.

I get:


 N rev   min      s       360 deg
 ----- * ---- * ------- * ------- =  N*360/(60*1000)  deg/ms
   min   60 s   1000 ms     rev


                                  =  N * 0.006  deg/ms 

                                      (where N is in rev/min)


Anthony Tsakiris

---------------------------------------------------------------------------
The opinions expressed are my own and not necessarily those of my employer.