Special Coverage

Converting from Hydraulic Cylinders to Electric Actuators
Automating Optimization and Design Tasks Across Disciplines
Vibration Tables Shake Up Aerospace and Car Testing
Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing
Mechanoresponsive Healing Polymers
Variable Permeability Magnetometer Systems and Methods for Aerospace Applications
Evaluation Standard for Robotic Research

Integrated Motor Control Meets Aviation Needs

The trend in aircraft design is toward more efficient brushless DC motors. A integrated motor drive module for brushless DC motors from International Rectifier (El Segundo, CA) reduces the effort of programming the motor control and simplifies certification. Because the device is configured for sensorless field oriented control, the elimination of Hall sensors improves reliability while reducing component count. It enables the aircraft to achieve greater fuel economy and lower maintenance costs.

Posted in: Articles, Motion Control, Electronic control units, Suppliers, Electric motors, Jet engines, Reliability
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Custom inserts solve reel torque problems

As a leading supplier of fishing equipment and accessories, Penn Fishing Tackle Manufacturing Co. provides customers with high-quality, competitively priced, cutting edge products that meet the highest possible industry standards.

Posted in: Application Briefs, Motion Control, Customization, Metals, Plastics, Recreational vehicles and equipment
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Configurable Components Ease Sourcing For Machine Company

ABCO Automation, Greensboro, NC, has consistently decreased costs and increased profits by looking for new ways to source custom components used in machine builds.

Posted in: Application Briefs, Motion Control, Cost analysis, Supply chain management, Parts
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Motor Control Chip

The Magellan programmable motion processor chip from Performance Motion Devices (Lincoln, MA) controls any combination of DC brush, brushless DC, microstepping, or pulse and direction motors. Each controlled axis supports profile generation, servo loop closure, PLC-style signal manipulation, and motor signal generation. Advanced features include programmable PID filters with velocity and acceleration feed-forward, 32-bit position error, and 50 microsecond loop time. Selectable profile modes include S-curve, trapezoidal, velocity contouring, and electronic gearing.

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Piezoelectric Stage

The P-737 PiFOC Piezo-Z stage from Physik Instrumente L.P. (Auburn, MA) uses deconvolution and 3D imaging techniques. It provides up to 250 micrometers of travel, millisecond response, and nanometer precision motion under closed-loop control. The stage achieves 10 to 50 times faster response than conventional stepper motor drives. It is available with a choice of analog and digital piezoelectric controllers and accepts digital and analog input signals. The stage is compatible with many image acquisition packages and includes LabView drivers.

Posted in: Products
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Rotary Seal

American High Performance Seals (Pittsburgh, PA) has announced its Rotaflon rotary seal which minimizes shaft damage and reduces power consumption. The seal accommodates changing operating conditions, low breakout force, and provides superior chemical resistance. It accommodates surface speeds to 5900 ft/min and temperatures from -58 F to +500°F and is suited for poor lubrication conditions.

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Stepper Drive

Applied Motion Products’ (Watsonville, CA) ST10-Si stepper drive delivers 24 to 80 Vdc with peak outputs to 10 A. The drive is protected against overvoltage, undervoltage, overtemperatures, and external output shorts. Upon start-up, the drive measures motor parameters including resistance and inductance, and uses this information to optimize system performance.

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Wire Thread Insert

The Spiralock Drive Notch wire thread insert from Spiralock Corp. (Madison Heights, MI) exhibits no tension loss after 24 hours of continuous vibration testing and no fatigue indication. The inserts are simply threaded into any STI tapped hole, with no tangs to break off, retrieve, or account for. The insert resists shock, vibration, and thermal extremes, and provides improved joint integrity in softer materials such as aluminum, zinc, magnesium, and plastic. The insert also eliminates stress in the parent material and requires no staking, keys, or lock rings to hold them in place.

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Integrated Motor/Controller

The I2 integrated motor and controller from Specialty Motors (Valencia, CA) combines a brushless DC servomotor with built-in drivers, controllers, and feedback devices. Applications software provides motor control, requiring the engineer only to select velocity or position control mode.

Posted in: Products
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Fiber Optic Communications Systems

Communications and, more recently telecommunications, are needs deeply engrained in human history. These needs have significantly evolved over time enabling today’s content-rich (text, music, images and video, etc), real-time and multi-location exchanges through electrical, optical or, more broadly, electromagnetic signals conveyed by different media. Among the more versatile is optical fiber.

Posted in: Articles, Features, ptb catchall, Photonics, Fiber optics, Telecommunications systems
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