Compumotor has developed a direct drive rotary servo system that's the most compact in the company's Dynaserv line. Each consists of a brushless servo motor with 10-ft of motor and encoder cables, microprocessor-based drive, power supply, and an incremental encoder. Offered in both 4-inch and 6-inch diameter versions, they are available in speeds up to 2.5 rps and resolutions up to 655,360 positions per revolution. Axial and radial runout measures 10 mm--10 times better than the Dynaserv DR and DM series--with 5 mm available. Applications include scanning, semiconductor processing, disk drive assembly, rotary indexing, industrial robots, and low-speed inspection. Parker Hannifin, Compumotor Division, Product Code 4173.
In many engineering workplaces, there’s a generational conflict between recent engineering graduates and older, more experienced engineers. However, a recent study published in the psychology journal Cognition suggests that both may have something to learn from another group: 4 year olds.
Conventional wisdom holds that MIT, Cal Tech, and Stanford are three of the country’s best undergraduate engineering schools. Unfortunately, when conventional wisdom visits the topic of best engineering schools, it too often leaves out some of the most distinguished programs that don’t happen to offer PhD-level degrees.
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