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Bright Spot Amid Gloom: Doors Open to Growth in Linear Motors

Bright Spot Amid Gloom: Doors Open to Growth in Linear Motors Lamenting that people dwell on the downside of events, Alexander Graham Bell once remarked, "When one door closes, another opens." His words seem to describe development in only a few of the current industrial markets, but one of them is linear motors. Even though the door slammed recently on semiconductor and flat-panel business, segments which accounted for more than 50% of the outlets for linear motors a few years ago, linear motors are exhibiting double-digit growth. The doors that opened elsewhere were in segments such as machine tools, test and measurement, medical equipment, and photovoltaic machinery.

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New Miniature Ball Screw Stocking Program
Alliance for Precision Systems, Div of TPA, LLC

New Miniature Ball Screw Stocking Program Tired of 12-week lead times for precision ball screw assemblies?

Here's your solution! The miniature ball screw stocking program from The Precision Alliance and KSS offers quick deliveries of precision ground and rolled ballscrew assemblies. Use this program and speed the delivery of 448 ground ballscrew, 15 rolled ballscrew, and two bi-directional ground screw configurations.

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Electronic Components Distribution . . .
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National's Audio Solutions Available from Digi-Key
Digi-Key Corporation

New Pressure Sensor Solution Starting at €97 National's high-performance series brings dramatically improved sound quality to high-fidelity consumer and professional audio equipment. National manufactures Class AB and Class D amplifiers and audio subsystems for speakers, headphones, and ceramic and piezoelectric speakers. National makes it easier to design better, richer-sounding systems with our acclaimed Boomer® and Overture® lines. With the capability to process an order, from order entry to shipping, in as little as 15 mins., Digi-Key processes more than 99% of its orders the same day.

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Positioning & Sensing . . .
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Position Sensors Get Smarter

Position Sensors Get Smarter Analog sensors paved the way in plug-and-play, but digital sensors win hands down for response time, managing noise, and communicating so much more data. Still, a review of advantages and limitations of open-standard magnetorestrictive sensors and proprietary synchronous serial interface (SSI) configurations is vital for minimizing signal delays and boosting motion control system performance.

For more on this subject, subscribe to the GlobalSpec e-Newsletter, DirectU2 The world of Sensors & Switches.

Robotic Pill Promises Better Dose Delivery

Robotic Pill Promises Better Dose Delivery The "Intelligent Pill," unveiled at a recent pharmaceutical conference, is a true position-detecting wonder. Its sensors measure acidity and temperature to determine position in the stomach and whether to release a dose of medicine. Microprocessor, battery, and wireless radio aid the release of meds to more precise spots in the body than previously possible.

Motion System Hardware . . .
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Smooth Moves for Step Motors

Smooth Moves for Step Motors Step motors are fairly robust as motion providers, but they have an inherent weakness — resonance that can lead to intolerable vibration. When engineers can't smooth the operation with changes in voltage or load parameters, dampers might be the answer. This Machine Design report and related video discusses routes to give step motors smoother moves.

Motor Drive Cable Reduces Noise

Motor Drive Cable Reduces Noise As inverter switching speeds become faster, conducted noise levels are an increasing problem, creating interference or failure in peripheral equipment. The typical solutions are heavier earth cables, braided wire, or shielded cables with larger diameters. Two companies, however, have paired up to develop a thinner, non-shielded motor drive cable that reportedly doubles recovery efficiency of conducted noise current.

If you find this subject interesting, subscribe to GlobalSpec's e-Newsletter, DirectU2 The world of Wire & Cable.

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Baumer's Compact EcoSpin
Magnetic Sensor

Baumer Ltd.

Baumer's Compact EcoSpin Magnetic Sensor Baumer's new EcoSpin family of modular, magnetic sensing encoders is the most flexible, smallest profile system in its class. The EcoSpin line offers high resolutions in a very small package for cost-sensitive applications.

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Motion Controllers . . .
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Winning Combo for High Speed and Accuracy
 

Winning Combo for High Speed and Accuracy The aim in motion systems is generally either high speed and high throughput or high accuracy with lower speed requirements. Sometimes a job requires both, as was the case in the redesign of a machine for testing automotive sensor components. The objective: select a high-performance controller and amplifier that can manage extremely short moves, 0.001 in. in 1-2 milliseconds.

Moving-magnet Motors Emulate Human
Motion

Moving-magnet Motors Emulate Human Motion Engineers often select linear motors when they seek accuracy in long or short strokes. Yet one new design, featuring a moving-magnet linear motor, is being tapped more for its fast response time. The applications include a machine for testing spinal discs, where moving-magnet motors generate the motion needed for realistic human body dynamics.

Drives & Actuators . . .
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New Lease on Life for DC Motors

New Lease on Life for DC Motors The company that introduced the world's first digital DC drive has plans to help keep the large installed base of expensive DC motors going. Control Techniques released its first new DC drive in 15 years, suggesting that drives with modern controls, system integration, and connectivity will help extend motor service life and improve performance.

Trend in Drives: Increase Power Efficiency

Trend in Drives: Increase Power Efficiency A recent Design News article draws comments from automation suppliers on what their customers are demanding in drive products. Among the expectations: expanded control capability; support for different types of motors; management of regenerative energy; advanced control algorithms — mainly in support of a new focus on increasing the power efficiency of motion control systems.

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BEI Sensor Accessories Available for Easy Online Purchase
BEI Industrial Encoders (BEI IED)

BEI Sensor Accessories Available for Easy Online Purchase Free second day domestic shipping is offered on most products including electronic signal conditioners, cable assemblies, connectors, digital readouts, motor adapters, couplings, and power supplies. These accessories will interface with a wide range of sensors including encoders, resolvers, proximity sensors, flow meters, photo detectors, pulse generators, digital temperature sensors, and pressure sensors. Learn more...

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Careers & Commentary . . .
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Gain the Latest Project Management Credentials Online!
Villanova University Online

Gain the Latest Project Management Credentials Online! Gain the Latest Project Management Credentials Online!

Be among the first to receive PMBOK® Guide — Fourth Edition-based training. Learn 100% online from acclaimed Villanova University. Save up to $1,540 now!

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January 18, 2010 - Volume 4 Issue 1
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