Aside from hooking up / rigging up an LCR meter and checking the capacitance of the various 'phases', there isn't much you can do. This measurement might indicate a cracked piezo element or broken contact where the circuit looks like a OC.
Mechanically, there might be excessive surface wear / contamination on the friction surface. These are the first things I'd investigate. N. Christopher Perry On Jun 12, 2013, at 19:58, Kirk Wallace <[email protected]> wrote: > Has anyone here worked on ultrasonic motors? I need to repair one (Canon > lens) and need some insight. Such as, is there something like a > continuity check to see what part of the motor might have a fault? > > http://en.wikipedia.org/wiki/Ultrasonic_motor > http://www.noliac.com/Files/Billeder/Pdf/Pdf%20%20external/Piezoelectric_ultrasonic_motors.pdf > http://photo.net/canon-eos-digital-camera-forum/00QHjI > -- > Kirk > http://www.wallacecompany.com/machine_shop/index.html > > ------------------------------------------------------------------------------ > This SF.net email is sponsored by Windows: > > Build for Windows Store. > > http://p.sf.net/sfu/windows-dev2dev > _______________________________________________ > Emc-users mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/emc-users ------------------------------------------------------------------------------ This SF.net email is sponsored by Windows: Build for Windows Store. http://p.sf.net/sfu/windows-dev2dev _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
