We needed to detect motion in a commercial, stepper motor driven system and subsequently initiate motion in a servomotor based system we developed. Because both systems simulate human respiratory ...

THE alternating current has of late years sprung into great commercial importance, and accordingly the laws regulating its flow, long known to a few, are becoming recognized and assimilated by the ...

ABB, a power and automation technology group, has successfully developed and tested an 1,100 kilovolt (kV) ultrahigh-voltage direct current (UHVDC) converter transformer breaking the record for the ...