Motion Control

Vibration Analyzer

Datastick Systems (Campbell, CA) offers the VSA-1212 vibration spectrum analyzer, a PDA-based vibration analyzer that uses off-the-shelf ICP®-type piezoelectric accelerometers for machine condition monitoring and maintenance. The system includes the Datastick® analyzer module that attaches to PDAs running Palm OS, the Datastick Spectrum handheld software that collects and displays vibration measurements, and Datastick Reporting System™ software that receives the data from the handheld into a Microsoft® Excel® workbook on the PC.

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Brushless DC Motors

Pittman® Brushless DC servomotors from PennEngineering® Motion Technologies (Harleysville, PA) feature a slotless stator design for applications in data storage, medical, semiconductor, and automation. Features include low inductance and high current bandwidth for control during rapid acceleration in incremental motion applications, and a large magnetic air gap that minimizes viscous torque losses.

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Electro-Mechanical Actuator

Exlar Corp. (Chanhassen, MN) has introduced the Exlar I Series electro-mechanical actuator with roller screw technology. Users have a choice of motor brand and type, including brushless servo, stepper, DC, or AC motor. Input transmission options include direct coupling, parallel belt and pulley drive, and in-line planetary gearing. It is offered in two mechanical grades. The IM Series offers mechanical capacity suitable for lower forces up to 4,000 pounds and cycle rates achievable by stepper, DC, and AC motors. The IX Series uses a brushless servo motor from any manufacturer for rapid-cycling applications requiring long life.

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