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Oct. 1, 2005
Click on Current Issue for in-depth information on motors, bearings, linear motion, controllers, and sensors. Click on Issue Archive to browse past features;

Click on Current Issue for in-depth information on motors, bearings, linear motion, controllers, and sensors. Click on Issue Archive to browse past features; classic issues of the popular department Brushing Up are also warehoused to pass on to your favorite engineering student or protégé.

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Don't miss an issue of Motion System Design! Online renewal is free and fast to those engineers and designers involved in the field of PT motion control systems.

Motor definitions and more

From www.minarikval-add.com.

Minarik Corp. (a motion control/automation manufacturer and distributor) has redesigned their website to offer general and helpful information. From the glossary page at www.minarik.com/support.html:

Four quadrant: This term refers to a drive's ability to control the velocity and torque of a motor in either direction of rotation. The direction of torque can be in the opposite direction of the velocity for applications requiring braking or deceleration. Single-quadrant drives, on the other hand, only produce torque and velocity in the same direction of rotation.

Motion control site

AC Technology of Uxbridge, Mass. still hosts its site at www.actechdrives.com. However, the company has launched a new website at www.actech.com. Why? Over the last couple years, the company has evolved from specializing in variable speed drives to providing a comprehensive range of motion control products and services.

Learn by example

Bimba Manufacturing of Monee, Ill. hosts a new Solutions Shop microsite at www.bimba.com/solutionshop. At the site, visitors can search by industry or application type and download printable PDFs of sample applications.

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