Motorsoft (www.motorsoftmotors.com) has unveiled a dynamometer kit for teaching students and engineers the operating characteristics of various precision electric motors and electronic drives. The basic kit comes with three interchangeable test motors, including a PM dc, a 3 phase ac induction, and a PM brushless motor along with a calibrated PM dc generator as a load. All motors, except for the PM dc, are fitted with a 1,000 line optical encoder, couplings, and motor bases to enhance interchangeability.
A slew of announcements about new materials and design concepts for transportation have come out of several trade shows focusing on plastics, aircraft interiors, heavy trucks, and automotive engineering. A few more announcements have come independent of any trade shows, maybe just because it's spring.
Samsung's Galaxy line of smartphones used to fare quite well in the repairability department, but last year's flagship S5 model took a tumble, scoring a meh-inducing 5/10. Will the newly redesigned S6 lead us back into star-studded territory, or will we sink further into the depths of a repairability black hole?
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