BEI Engineering Resources for Motion Control Systems

Engineering Resources for Motion Control Systems















 

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) Motion Control Round-up )
Dear Reader,

BEI White RosesJune is not only the traditional start of summer, it is also the traditional month of romance.  That's why so many weddings take place in June, named after The Roman goddess, Juno. In fact many of the traditions of weddings can be traced back to those ancient Roman times.  It just goes to show you that good ideas last through the generations.


Speaking of good ideas. At BEI Sensors we've got lots of good ideas to help with your measurement and control needs.  We haven't been around as long as the ancient Romans just yet, but we've certainly got a good start.  Give us a call and challenge us with your position measurement problems - we'd love to work out a solution for you.

 

Small is Big
BEI EX11 Rotary Incremental EncoderAmongst the variety of potentiometers, hall effect position sensors and optical encoders that we have available, we particularly like this little one.  Measuring only 1.1 inches in diameter and featuring opto-ASIC technology, it's the most compact rotary optical encoder that we offer.

The precision bearing set ensures accuracy and long life and the compact size means this miniature workhorse fits where others can't. The case is high-impact glass filled polycarbonate for stability and ruggedness.

If you've been on the lookout for high performance in a small package, this just might be the solution you were looking for. Click the picture to download a PDF for this encoder.
 

All That and Beauty Too!
"I'm selfish, impatient and a little insecure. I make mistakes, I am out of control and at times hard to handle. But if you can't handle me at my worst, then you sure as hell don't deserve me at my best."

"I believe that everything happens for a reason. People change so that you can learn to let go, things go wrong so that you appreciate them when they're right, you believe lies so you eventually learn to trust no one but yourself, and sometimes good things fall apart so better things can fall together.

"We should all start to live before we get too old. Fear is stupid. So are regrets."

The story of this young lady is tragic and widely known.  Behind the Hollywood glitz and glamour, she was a real person that had a rough start in life but managed to rise above it.

BEI Marilyn MonroeShe was born to a woman who was mentally unstable and she never knew her father.  Despite growing up in a series of foster homes, she eventually became one of the most recognizable faces on the planet.  This woman needs no introduction, so just click on the image of Norma Jeane Baker on the left and you can read her biography and transformation from obscurity to stardom.

 

Can you solve it?  
BEI Idea bulb
Here's a challenge that I'll bet a lot of you can figure out.  We received a call the other day from a customer who seemed to be getting a reduced life from his hollow-shaft encoders. They were installed on AC motors and he knew they should last for years in his installation, but it seemed like he had to replace them after about 12 months.  What's more, he swore that those installations where the motors ran hotter had the shortest lives, so he was wondering if there was some sort of temperature sensitivity of the product.  We asked him for the exact model number of the encoders that he was ordering and we noted that they had specifically been rated up to 105 C operation, so temperature was not the issue.  However something else in the model number (or rather the lack of something) gave us all the clue we needed.  What was it?

Answer:  In this case, the missing information was a designator for the tether arm.  We asked what he was using to tether the body of the encoder and he said "Nothing." It turns out he was bolting the face of the encoder directly to a motor mounting plate and then tightening the shaft clamp directly on the motor shaft.  This caused excessive side load and significantly reduced bearing life.  For a more detailed explanation you can follow this link.  Once we got him squared away with the correct installation, he was one happy guy!
Blog it Up  
Regular readers will remember that last month BEI Sensors debuted our monthly Blog. This month's topic is safety pertaining to sensors and systems.  With the oil spill (or spew) in the Gulf of Mexico, safety is uppermost in the minds of legislators.  What are the responsibilities of regulatory agencies, manufacturers and operators to ensure public safety?  Click on the BLOG link below and share your opinions and ideas.
 

BEI Blog

It's Hard Not to Stair
 
>BEI Awesome StaircasesSometimes the line between art and architecture gets pretty blurry.  Add in some engineering and just a touch of whimsey and the results can be downright awe inspiring.  If you click on the picture at the left you can take a look at a collection of positively mind-stretching designs that elevate the utilitarian staircase from the pratical and functional to the inspirational.  Take a short break from your busy schedule to wander through this web page and prepare to be transported to a different world.
 
THANKS FOR READING
 
I appreciate your time this month to read through our monthly newsletter.  As always, feel free to contact us if there is anything we can do to help with your automation needs.
 
 
Sincerely,
 

BEI 

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Scott Orlosky
In This Issue
Small is Big
All That . . .
Can You Solve It?
Blog It Up
It's Hard not to Stair
Product Spotlight
Product Spotlight
BEI Optical Isolator
 
Here's a real problem solver.  The BEI Sensors Optical Isolator can take care of a whole class of installation issues.  Wrong voltage levels for your controller, loss of signal on a long cable run, switch output type from open collector to line driver - all of these are a piece of cake with the right interface.  Click on the picture above to read more.
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