Motion Control

Precision Motors Help Guided Parachutes Deliver Cargo

The Onyx guided parachute designed and manufactured by Atair Aerospace (Brooklyn, NY) is an autonomous precision airdrop system. The unmanned aerial vehicle (UAV) uses motors and planetary gearheads manufactured by Maxon Precision Motor (Fall River, MA) to drive the parachute’s mechanical mechanisms.

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Brake System Development Accelerated With 3D Modeling

Tractair Ltd., based in Brough, UK, designs, manufactures and installs air and hydraulic brake systems for special applications. The company works closely with the design engineers of major international tractor manufacturers and other OEMs to ensure that the braking systems are fully integrated. The company has been closely involved in the development of air brakes for agricultural and other off-road vehicles since 1985 and continues to adapt available technologies to meet the demands of increasing loads and speeds handled by agricultural and construction vehicles, both on and off the highway.

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Motor System Enables Elevators to Ride Smoothly

Many factors have contributed to the fact that in the past five years, home elevator sales have doubled. These include the aging of the affluent baby-boom generation. In the next five years, an estimated 70 million people will be of retirement age; many of them will be looking at retaining their independence by staying in their own homes and adding features such as elevators to make living more accessible, or moving to customized homes that already include such advantages. According to a Florida State University study, a home elevator can add 10% to the selling price of a home.

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Magnetostrictive Sensor System Helps High-Performance Car Brake Quickly

The Bugatti Veyron is the world’s fastest street-legal motor vehicle, a high-end passenger car that can reach speeds of more than 200 miles per hour. These high speeds require extra braking power, which comes from raising an aerodynamic rear wing and generating additional braking forces. The Veyron can decelerate from 230 mph to 0 in only 7.5 seconds, largely due to the extra down force achieved with the rear wing, which is raised within 0.4 seconds to a 55° angle.

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Creating Motion Control and Drive Electronics With an FPGA-based System

Complex machines in semiconductor manufacturing often have tough performance requirements for motion control. When traditional PLCor PC-based motion controllers fail to meet these requirements, machine builders turn to custom board development — a time-consuming and expensive process. Recent advances in embedded technologies have made it possible to use FPGA-based COTS platforms to not only meet those requirements, but also to get to market faster by using graphical system design.

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Lead Screws Used in Diamond Analyzer

Traditionally, once they are shaped, but before they are mounted, diamonds are rated by the “4 Cs” — clarity, color, carat, and cut. Modern gemology, however, grades finished diamonds by a more accurate standard: light performance. The quality of how a diamond innately captures and “plays” with light separates a superior gemstone from a flawed one. Supporting 10 million people and recording a profit of $1,010 billion in 2006, but facing a global supply crunch and competition from gem-quality synthetic diamonds, the diamond industry must get superior stones on the market quickly and reliably. For quality assurance, many firms have turned to the BrillianceScope™ Analyzer from GemEx (Mequon, WI) to measure the light performance of finished diamonds in a comparative test against some of the industry’s highest-rated stones. GemEx utilized the RGS™ Rapid Guide Screws from Kerk Motion Products (Hollis, NH) to maintain the precision of the BrillianceScope’s testing mechanism.

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Scales Work as Part of Thermonuclear Ignition Target Assembly

Scheduled for completion in 2009, the National Ignition Facility Project (NIF), part of Lawrence Livermore National Laboratory (LLNL, Livermore, CA), is a component of the National Nuclear Security Administration’s (NNSA) Stockpile Stewardship Program, whose mission is to maintain the safety, reliability, and effectiveness of the nation’s nuclear stockpile without underground nuclear testing, banned since 1992. To continue research into thermonuclear ignition, NIF began the Inertial Confinement Fusion (ICF) Program for high-energy density physics. To this end, NIF constructed a complex system of lasers ending in a chamber ten meters in diameter to house tiny fuel capsules called “targets” that are subjected to a high-energy pulse, setting off a small thermonuclear burst. The target assembly machine, part of NIF’s thermonuclear testing system, is custom built by ABTech (Swanzey, NH), using the LIP 481R linear scales from HEIDENHAIN Corp. (Schaumburg, IL).

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