Encoder or Resolver? You Make the Call

Here's the reader question we published in the October issue. "We need to measure motor speed in our dry food packaging machines to close the loop for more precise control.

We've narrowed our choices to either an encoder or a resolver, but we're having trouble deciding which is best. What are the advantages and drawbacks of each technology?"

Sounds like we need a few of you to drop some of your experience on this subject. Betcha they were using open loop step and it's no longer good enough. Give this reader a hand right now via "comments" link below or send us your comments, suggestions, or solutions at [email protected]. Please include your company, location and title in the response.

Have a problem you'd like to pose to the readers? Send it along, too.