Control Engineering editors— in the 14th annual process—highlighted the best products of the year, based on technological advancement, impact on the market, and service to industry.Editors selected from among thousands of products mentioned in Control Engineering and Control Engineering Online during year 2000, in nine product categories: Control components; Human-machine interface...
Harleysville, Pa. —Elcom ST size 23 slotted brushless dc (bldc) motors feature commutation control electronics inside the motor housing. This custom option reduces size, weight, and operating cost versus standard bldc motors, says the manufacturer. Wiring connections are also simplified. Elcom ST produces up to 49 oz-in.
Addison, Ill. —MDC/MSV magnetic synchronous torque-limiting clutches transmit torque through housings, cabinets, or other sealed applications. Two disks (or cylinders) lined with permanent magnets oppose each other across the barrier and an air gap. "Servo-quality" torque is produced as one disk or cylinder rotates relative to the other.
KEY WORDSMotors, drives, & motion controlAC variable-speed drivesAC induction motorsAdaptive controlControversial right from their name, "sensorless" ac drives actually use current and voltage sensors to achieve motor control. Even beyond terminology, it's not obvious what sensorless ac drives can or can't do, and where they fit into the big picture.
Hannover, Germany—Twenty-five halls will be "in play" to accommodate this year's edition of the "world's largest industrial technology trade show" on April 23-28, 2001. An extra benefit is the fairground's upgraded infrastructure, completed for Expo 2000, the World's Fair. Hannover Fair 2001 combines six "fairs" in its "Power of Industry" theme.
Chicago, Ill.— Hundreds of exhibitors showed thousands of innovative products and services at the National Industrial Automation Show during National Manufacturing Week 2001 at McCormick Place. For more coverage, including streaming video clips, click on "NMW 2001" at www.controleng.com. Advantech Automation (Cincinnati, O.