Speed/Torque Curve Orientation
Speed/Torque Curve Orientation
(OP)
I've seen speed/torque curves for motors that have torque on the x-axis and others that have it on the y-axis. Does anybody know of any reasons why people do this one way or the other? Or is it just personal preference. The only thing I can think of is if you go by the convention of putting independent variables on the x-axis, then torque should probably go on the x-axis.





RE: Speed/Torque Curve Orientation
Best to you,
Goober Dave
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RE: Speed/Torque Curve Orientation
"Will work for (the memory of) salami"
RE: Speed/Torque Curve Orientation
There can be two speed values for a given torque.
So to me it makes more sense to consider speed as independent variable.
But in the end, personal preference is all that it is.
I'm reasonably sure there is no standard (and I'm not saying there should be either...it's a pretty minor format detail after all).
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(2B)+(2B)' ?
RE: Speed/Torque Curve Orientation
Meanwhile, speed torque curves for AC induction motors typically had speed or freq as X so torque or amps Y.
IIRC around 2005 a few BLDC and AC servo motor manufactures, IMO, in an attempt to differentiate themselves from their competitors, began swapping torque to Y axis. It seemed to gain moment for a few years but seems to have come back around to the normal torque on X for servos, and always speed on X for induction motors.
Sorta like the phone number format rage for a while of 937.696.227x vs more normal (937) 696-227x. Or bell bottom jeans.
RE: Speed/Torque Curve Orientation
I looked at a few different curves, all had speed on the x-axis which confims electricpete's comment. I have seen one the other way around though, just can't find it quickly.
Best to you,
Goober Dave
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RE: Speed/Torque Curve Orientation
RE: Speed/Torque Curve Orientation