The ZETA Series microstepping drive features active (electronic) damping and electronic viscosity. Step Motor & Servo Motor Systems & Controls catalog includes information on the complete line of motion-control products. An engineering reference covers motor, drive, servo tuning, control, and feedback technologies, with illustrated application examples, selection considerations, a how-to section on system calculations, and a glossary of motion control terminology. Other sections focus on products available in motion control areas.
Parker Hannifin Corp., Compumotor Div., 5500 Business Park Dr., Rohnert Park, CA 94928, FAX (800) 328-8087.
Although plastics make up only about 11% of all US municipal solid waste, many are actually more energy-dense than coal. Converting these non-recycled plastics into energy with existing technologies could reduce US coal consumption, as well as boost domestic energy reserves, says a new study.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.