Motion Control

Ionizers

A line of Koganei blow-type ionizers is available from Humphrey Products Co. (Kalamazoo, MI). Designed to remove static electricity and dust, the device is available in one-head, two-head, and compact models. A range of optional solid and flexible nozzles provides coverage from a wide area, to as close as 1 mm from the workpiece. Low-voltage DC power supplies a high-voltage AC transformer that produces a high-frequency AC field.

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Motor Protection Circuit Breakers

The Series 330 motor protection circuit breakers from c3controls (Beaver, PA) are available with thermal and magnetic trip elements providing overload and short circuit protection, and magnetic trip element only for short circuit protection. Both units come in universal rating and markings (A, kW, and HP), as well as third-party certification markings. They meet UL and CSA standards requirements as Manual Motor Controllers for use as Motor Disconnects, and meet National Electrical Code requirements for use in multi-motor applications. Also included are visible trip indicators for fast identification of which device tripped in a control panel where multiple motor protection breakers are installed.

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The Air Bearing Advantage in High-Precision Positioning

All moving objects possess six degrees of freedom — three linear and three rotary. The task of a linear motion guideway is to eliminate, as closely as possible, five of these degrees of freedom, leaving a single rotary or linear axis of motion. Air bearings are the purest and highest-performance means of defining linear or rotary motion, and have substantial advantages over conventional mechanical guideways. These advantages become more pronounced as the desired resolution increases, and many aspects of high-precision positioning are uniquely enhanced when air bearing guideways are chosen.

Posted in: Features, Motion Control, Articles

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Motion Control Research Center Develops Speed Control System for SRM Drives

The Center for Rapid Transit Systems at Virginia Tech (Blacksburg, VA) is an internationally recognized drive systems and motion control research group with expertise in the design, simulation, and control of switched reluctance motor (SRM) drives and power converter topologies.

Posted in: Applications, Motion Control, Application Briefs

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“Pinball Wizards” Bank on Motion/Stress Analysis Software to Redesign Game

Stern Pinball of Melrose Park, IL, is the only manufacturer of coin-operated pinball machines in the world. Today, Stern’s pinball games are designed using sophisticated computer simulation software.

Posted in: Applications, Motion Control, Application Briefs

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DC/DC Converter

Texas Instruments (Dallas, TX) has announced the DCP010507DB, a 1-W isolated, unregulated DC/DC converter, supporting an operating temperature range of -40 °C to 100 °C. The module provides thermal shutdown and short-circuit protection, and device-to-device synchronization control for applications with multiple converters.

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Non-Contact Transducer

Balluff (Florence, KY) offers the Micropulse™ BIW transducer that uses a patented, pulsed-inductive technology. It features a wear-free, non-contact design that can be used where linear pots are used, such as plastic injection molding machines, blow molding machines, stamping presses, and hydraulic motion bases. The transducer is available with an analog 0 to 10V or -10 to +10V output. It has a >20 kHz update rate, non-linearity of ±0.02%, and resolution to 5 microns. It is available in stroke lengths from 75 to 750 mm.

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