MOTION CONTROL: Koford Engineering LLC has introduced a new line of 22-mm slotless brushless motors that offer the highest power density and efficiency in their class. They are available in two- and four-pole designs and with hall sensors or sensorless with power outputs 0.7 to 430W, speeds from 2,600 up to 201,600 rpm, and efficiencies up to 92 percent. Autoclavable and non autoclavable versions are available. The slotless design eliminates cog for more accurate positioning in medical robotics applications and provides cool operation at high speeds for surgical and dental tools. The four-pole configuration doubles the resolution for hall feedback speed control, improving speed resolution and servo performance for applications that do not use encoders due to space or cost constraints. Windings can be customized to customer requirements and shafts can be modified. Cannulated shafts are available. Matching High efficiency/high frequency hall and sensorless drives which do not require external inductors are also available. These can be custom programmed to user requirements. Applications include orthopedic and other surgical tools, dental hand pieces, pumps, blowers and surgical robots.
One way to keep a Formula One racing team moving at breakneck speed in the pit and at the test facility is to bring CAD drawings of the racing vehicleís parts down to the test facility and even out to the track.
Most of us would just as soon step on a cockroach rather than study it, but thatís just what researchers at UC Berkeley did in the pursuit of building small, nimble robots suitable for disaster-recovery and search-and-rescue missions.
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