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| The latest information on Electrical &
Electronic Components
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June 5, 2008
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Featured video: Inertial Sensors and
Accelerometers for hand-held controls
This featured video discusses what's going on these days with
inertial sensors and accelerometers. Examples include a version of the
Sony PlayStation Portable handheld game console that replaces the analog
'nub' with a 3-axis accelerometer for tilt and motion control.
Watch the video
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New Way to Use Kirchhoff's Current Law
Simplifies Circuit Analysis
You may have thought you knew everything there is to know about the
well-known Kirchhoff’s current law. Kirchhoff says that at any point
in an electric circuit, the sum of currents flowing toward the point is
equal to the sum of currents flowing away from it. Turns out there is a
new way of using Kirchhoff’s law to make circuit analysis clearer and
simpler.
Read the rest here...
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Berke On Safety: How To Mistreat a Hair
Dryer
How do you out-smart consumers who are determined to mistreat home
appliances? Try assembling a brainstorming team that works through a
preliminary hazard analysis. The results of the brainstorming session
lead the way for designers to come up with tests regarding probability,
seriousness, and possible solutions for these potential problems.
Read more here...
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Keystone Custom Components A
Specialty
 While our standard,
cataloged products meet most requirements, our Application Engineering
Group will modify existing products or design & develop specific items
to meet special application needs. Skilled engineering, production &
custom service teams use extensive tooling, stamping & machining
facilities for cost-effective responsive service.
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How to Control a 27-km-Long Machine
The Large Hadron Collider, currently the largest machine in the
world, recreate the conditions right after the Big Bang on a miniature
scale. A network of programmable automation controllers handle the
positioning of the LHC collimators which guide high-energy particles
around the 27-km-long loop.
Read the rest here...
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EMI/RFI shielding
A 52-page catalog covers standard and custom EMI/RFI shielding
products. Products include over 100 BeCu and stainless-steel finger
stock shielding profiles, including low -profile gaskets, soft no-snag
fingers, Omni contacts, twisted contacts, strip gaskets, reverse bend,
and cylindrical and spherical contacts.
Mounting options include track, clip-on, snap-on, stick-on, hook &
stick-on, and special mounting. Also offered are contact rings, "D"
connector gaskets, board-level shielding, knitted mesh shielding (with
or without optional elastomer core or environmental seal), various
elastomer gasket materials, fan vents, filters, and honeycomb vents, as
well as Twinseal and Trimshield gaskets.
More Information:
Tech-Etch
Inc.
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Incremental encoder
The R22i full-featured optical incremental encoder provides position
feedback with optional commutation signals for brushless motors.
Optional three-phase (U, V, W) commutation outputs are available for 4,
6, 8 and 10-pole brushless motors. Incremental encoder resolutions of
100 to 1,024 line counts are available with A, B and Z (reference)
channels. The factory-set R22i requires no alignment for incremental
outputs. The encoder is centered by the motor bearing pilot, and the
gap is preset. The unit operates at –30 to 110°C. Several optional
bolt patterns are available and motor shaft sizes up to 4 mm can be
accommodated.
More Information:
Renco Encoders
Inc.
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Attention time and information starved engineers
Now you can get a quick dose of literature, product, and digital
information resources right in your copy of Machine Design Magazine.
Look for your edition of Literature Express in the second issue of May
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CD’s and more from hundreds of manufacturers.
Rev up your interdisciplinary design skills
What happens when a microcontroller turns on a power FET, sending a
current pulse to a motor coil that develops a magnetic field which turns
the rotor shaft, advancing a timing belt that drives a pair of nip rolls
suspended on bearings in a web-processing operation on a form, fill, and
seal machine installed on a potato chip line at a Frito Lay plant in
central California? And how can you be sure that the encoders, prox
sensors, and other feedback devices you plan to use will accurately see
and report every relevant motion, machine state, and process condition?
And will the signals get through the networks fast enough, without being
corrupted, giving the controllers time to execute their algorithms as
intended? It's a lot to think about, and it only scratches the surface
of what many engineers grapple with today. If you happen to be one of
them, then the place for you — where you can find answers and meet
others with similar concerns — is www.Mechatronic-Design.com.
Backed by some of engineering's top information sources including
Machine Design, Electronic Design, Motion System Design, and Power
Electronics, Mechatronic-Design.com is the interdisciplinary engineer's
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Mechatronic-Design.com.
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available from National Instruments.
Begin your search here with a collection of
webcasts specifically chosen for design and automation engineers.
CAD Library offers advanced CAD Resources
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of
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designs. Our models are in native CAD formats. No translation
required!
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Sponsored
by:
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UPCOMING IN-PERSON EVENTS
Design-2-Part Shows are America's longest running and most trusted
events for sourcing custom parts and services.
Ten shows covering the country offer OEMs, engineers and purchasing
personnel the opportunity to meet job shops and
contract manufacturers face-to-face.
UPCOMING WEBCASTS
Architecture Options in Motion Control Design: Chips, Boards, or
Drives
Sponsored by PMD
DATE: June 11th, 2008
TIME: 2:00pm ET/11am PT
Levels of motion component integration often require serious design
consideration during machine and equipment development. A lack of
integration can impact equipment size, assembly costs, and reliability.
Yet expanded integration often affects the costs of components,
manufacturing, and maintenance. It also raises design questions
regarding the selection of motion system components. Obviously, what
the design tries to achieve determines the compromises made. This
presentation investigates and compares the differences between motion
control systems based on chips, boards, or drives; evaluates how each
fits into desired design parameters; and provides a quick understanding
of the factors used to select a level of motion system integration.
Click here to register!
Best Practices in Reducing Production Scrap and Rework
Sponsored by PTC
DATE: June 19th, 2008
TIME: 2:00pm ET/11am PT
Analysts agree that raw materials and labor are the two largest cost
centers for most manufacturers. Production inefficiency can come from
just about anywhere - parts from a supplier that don’t fit into your
finished assembly, a physical prototype you’ve used and then
discarded, or even a delivered product that doesn't meet customer
requirements. In each case, the scrap – along with the rework –
costs you time, money, and reputation. Today's highly compressed cycles
mean manufacturing errors and product-development inefficiencies can
become greatly magnified. But it doesn’t have to be that way. Join
this informative presentation to learn how successful companies are
implementing new product-development initiatives to significantly reduce
production scrap and design rework, and their associated costs.
Click here to learn more and register!
Supercharging Products with Embedded RFID
Sponsored by SkyeTek
DATE: June 26th, 2008
TIME: 2:00pm ET/11am PT
The power of RFID as a stand-alone application to increase accuracy and
efficiency in supply chain management has garnered much attention in
recent years. The story now is how RFID can be added as a feature to an
almost unending list of products -- adding new functionality, increasing
reliability and enhancing the user experience. They may still look the
same on the outside, but embedding RFID readers and software into
existing and yet-to-be released products can transform them on the
inside offering manufacturers, OEMs and product designers new
opportunities for competitive advantage through increased efficiency,
accuracy and product differentiation.
Click here to learn more and register!
ARCHIVED WEBCASTS AVAILABLE FOR FREE VIEWING
Click Here for a list of archived Machine Design
webcasts.
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