Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!apple!fox!portal!cup.portal.com!mmm
From: mmm@cup.portal.com (Mark Robert Thorson)
Newsgroups: sci.electronics
Subject: Re: Hysteresis motors
Message-ID: <25071@cup.portal.com>
Date: 15 Dec 89 18:56:43 GMT
References: <22342@ut-emx.UUCP>
Organization: The Portal System (TM)
Lines: 5

With regard to "speed flutter", is that the same thing as "cogging" or 
"detent"?  On motors for disk drives, it is important that the motor
speed remain constant, because that effects the recording density.
So one critical parameter when selecting a disk drive motor is the
variation in speed as the rotor passes over the poles.