BEI Engineering Resources for Motion Control Systems

Engineering Resources for Motion Control Systems















 

Newsletter Menu   |  return to News
.

) Motion Control Round-up )
 News and Views from the World of Automation April 2007 
In This Issue
  • Help for Your Troubles
  • Spring has Sprung
  • Can You Solve This?
  • Groovy Geometry
  • Thank You

  • Welcome to the April BEI newsletter. The generally accepted origin of the month April comes from the Latin aperire which means "to open". It's easy to connect this name to a time of the year when trees and flowers begin to open with blooms.

    In the spirit of the season - we at BEI would like to open ourselves up to you, our customers and friends. Contact us with your questions, comments, observations or suggestions. We're all ears and open to new ways to serve you better. We also want to thank- you for opening your eyes (and ears) to our monthly newsletter - enjoy.

    Help for Your Troubles

    We're always looking for ways to help you do your job a little better. We publish free design guides for rotary and linear encoders; develop new features and products that increase control capabilities and post simple encoder installation instructions on our web site, just to name a few examples.

    Our latest tool for your toolkit is our "Encoder Diagnostic and Installation Guide". We often don't talk about what to do when things go wrong - but the fact is - things do go wrong. That's where our latest guide can be a tremendous help.

    It's full of tips and hints that help you make a good, robust installation and avoid trouble in the first place. Then it lists the most common reasons that encoders get returned, along with the most likely diagnoses and specific actions to take.

    In addition, we give you a diagnostic checklist of mechanical and electrical tests that can help localize the problem. Whether your job is to design or to service control systems, I'd recommend you get this guide. Understanding the problems you might run into just might help you sidestep them. Click the link below to get yours.

    Free Troubleshooting Guide . . .

    Spring has Sprung
    "If we had no winter, the spring would not be so pleasant; If we did not sometimes taste the adversity, prosperity would not be so welcome." -- Anne Bradstreet

    Anne was one of the first Puritan settlers to arrive from England to US shores and settle into the Boston area in the new world. She was unusual in that she was well educated and frequently wrote poetry.

    It was frowned upon at that time for women to follow intellectual pursuits. Her works were published in England (without her permission) by her brother-in-law and were well received. This lead to the rest of her works being published posthumously.

    Follow the link below to find out more about this writer from the 1600's who braved a perilous journey across the ocean, stood outside of societal norms for the times and raised eight children in the new world.

    Bio for Anne Bradstreet . . . »

    Can You Solve This?
    Here's an interesting one that came across my desk recently. This was a customer who felt like he wasn't getting the life out of his encoders that he should have.

    Looking at his history of returns, we saw that typically his encoders had bearing problems, and that they had been in service for about a year before they were sent back. We discussed his application in some detail, looking for some clues.

    He was operating a cardboard corrugation line that ran continuously, 24 hours a day, seven days a week. The encoder was on a motor that controlled a conveyor. Naturally there was some fiber and dust - but nothing unusual. What was going on?

    This was surprisingly straightforward. At continuous duty with a motor speed of 1780 RPM, the encoder saw over 930 million revolutions per year. It turns out that the failed bearings were operating within their expected rated life, given a moderate load. However, since bearing life is a cubic function of load, halving the encoder bearing load would increase their life by a factor of eight. We recommended that he either look at reducing the load through attention to the mechanical coupling of the encoder, or introduce a high load bearing assembly to carry the load and relieve the encoder bearings. Either one would result in a much greater service life.

    Look at a High Load Bearing Assembly . . . »

    Groovy Geometry
    For those of you that aren't familiar with them "fractals" are generally shown as intricate patterns of repeating geometries that can be described through fairly simple equations. Being mathematical in nature means that they can be expressed not only graphically, as shown here, but musically as well.

    The study of fractals began in the 1870's by Georg Cantor, a German mathematician and the "father of set theory". Building from simple repeating line patterns, subsequent mathematicians expanded these concepts to more complex geometries creating the sort of hypnotic forms that represent fractals today.

    Interestingly enough, once fractals started being explored on the mathematical level it became apparent that these patterns had already been in use in the art world. It was understood, later, that the simplicity of the basic forms lent itself to biological systems and examples became evident in the natural world as well.

    For a fascinating journey into both the art and math behind fractals, follow the link below and visit the various tutorials on that web site. You will be treated to fantastic images, fractal music and can even download some fractal generating freeware.

    The World of Fractals . . . »

    Thank You
    I appreciate you taking the time to read our monthly newsletter and hope you found it informative and enjoyable.

    Just a quick housekeeping note. I'd like to remind you that the links at the bottom of the page allow you to easily forward this newsletter to a friend, update your email address or to unsubscribe.

    If you ever need applications assistance troubleshooting help, or help with an order, feel free to call us at 1-800-ENCODER or send a reply email to my address. We'd be happy to be of service.

    Quick Links...

  • Sign up for our next newsletter
  • Technical Information and Contacts

  • View last month's newsletter
  • More about BEI Industrial Encoders

  •     email: Scott Orlosky
        voice: 805-968-0782
         web: http://www.beiied.com

    Join the BEI IED mailing list 
    Email:

    BEI Motion Control Information   •   Position Sensors   •   1-800-ENCODER (362-6337)   •   Industrial Encoder Automation   •   Signal Conditioners for Encoders


    M-C-I Home   |   Insider's Guide   |   Glossary   |   Encoder Design Guide   |   Design Calculator 

    Special Applications  |   Installation Instructions   |  Interpolation Options   |   Notes & Tables   |   News   |   Free Specifying Guide

    Linear Encoders   |   Tech Support   |   Regulatory Info   |  Resource Links  |   Legal Notice   | Sitemap


    BEI Sensors   •   7230 Hollister Avenue   •   Goleta, California 93117
    Tel:
    1-800-ENCODER (362-6337)  •   Fax: 805-968-3154 or 800-960-2726
    Trademark     © 2013 BEI Sensors.   All rights reserved.
    contact webdesigner