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1. Pulling Power: Motorized Luggage
2. Motor Management and Maintenance
3. MISUMI Announces Summer Technical Seminar
Featured Content
1. Sound-Powered Electric Motor
Kelsey
Rubenking
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With the extra pain of airline payments for superfluous luggage, it
can be tough to justify any kind of travel these days. Still, whenever
you get that elusive vacation, Live Luggage would like you to say
goodbye to the days of heavy, cumbersome wheeled baggage –get rolling
with a light, motor-powered suitcase that takes the “lug” out of
luggage. See how the suitcase measures up to expectations in a
pre-release trial run.
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Ask any manufacturer what the optimal performance life of a motor
might be and you’re bound to get something in the range of two decades
– assuming it’s properly maintained. Ask whoever’s operating that
motor the same question and you’re more likely to hear “five
years” at best. Clearly, something isn’t adding up. Noah Bethel
suggests that motors aren’t being optimized or maintained properly.
Check out his solutions here.
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Misumi USA, Inc. has announced that it will conduct its
Configuration Technical Seminar in Cambridge, Ontario on July 15, 2008.
In addition, the seminar will be available as a Webinar CTS on August
19, and again as a hosted event in Chicago from September 23-25 as part
of the National Manufacturing Week trade show. These seminars are
designed to help engineers overcome the time and performance pressures
typically associated with custom machine builds. Registration is
available online.
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By pumping frequencies of sound through a computer’s hard drive
actuator, it turns out that an electric motor can reach up to 1800 RPM.
The actuator uses rare earth magnets, letting a tone generator provide
the power for the motor – there’s more to a sound card than you
thought!
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The EC16 brushless-dc motor has a 16-mm diameter, is 56-mm long, has
a 40-W power rating, and operates at 0 to 60,000 rpm. A planetary gear
is available to obtain lower speeds and a corresponding high torque. The
motor’s control magnet is separate from the main magnet, protecting
the Hall sensors of the electronic commutation from interference of the
magnet and winding current. Features of the motor include high
efficiency, no cogging, and a large linear speed/torque gradient.
Typical applications are in medical and dental technology, high-speed
construction tools, and automation systems.
More Information
maxon precision
motors inc.
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The SilverPak 17D two-phase, 1.8 ° NEMA-17 stepmotor has an
integrated microstepping driver designed to reduce overall design time
and system cost for applications requiring high torque and smooth
motion. Available in 2.69, 2.92, and 3.24-in. lengths, the motor is
capable of up to 85 oz-in. of holding torque, depending on motor stack
size. Additional features include a 12 to 24-Vdc operating voltage;
0.25 to 2.0-A peak phase current, full stepping to 16× microstepping
resolution, optically isolated step, direction, and disable/enable
inputs, and undervoltage and overtemperature protection.
More Information:
Lin
Engineering
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What happens when a microcontroller turns on a power FET, sending a
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LEESON's new SM2 Vector Series inverters deliver up to 200%
starting torque and control an Inverter rated motor down to 1Hz at full
output torque.
www.leeson.com
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