On Thu, Aug 9, 2012 at 7:28 PM, Veronica Merryfield wrote: > > On 2012-08-09, at 8:31 AM, M.L. wrote: > >> Veronica, what parameters are you trying to find? I'm not sure I >> understand exactly the type of motor you're referring to. Do you have >> any information that you can share? > > I am not sure I am using the right term either. > > Take a rotating disc and mount a series of coils axially to the disc. Usi= ng a polyphase drive to the coils, it becomes an induction motor. Usually it needs only two phases, one "active" and one "false" generated by a capacitor in series with the active phase. The coils are connected alternately to the active and false phase. Some fruny explanation here: http://www.animations.physics.unsw.edu.au/jw/electricmotors.html#ACmotors Your description (except dimensions) fit perfectly to synchronous AC small power motors used in mechanical time relays. > > Most pancake motors seem to be BLDC and some axial flux motors might be i= nduction motors but I am not sure. > > Most design equations for induction motors assume a squirrel cage. > > I need to be able to take a stab at estimating the torque from the coils = and eddy reaction. > > Thanks > > Veronica > > > -- > http://www.piclist.com PIC/SX FAQ & list archive > View/change your membership options at > http://mailman.mit.edu/mailman/listinfo/piclist --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .