This paper describes a device of cable reel which is driven by computer controlledfrequency-changing motor whose velocity can be regulated.
介绍了一种以微机控制变频调速电机驱动电缆卷筒的装置。
2
A method of controlledfrequency points is put forward, which can destroy FH signal sorting. So the running-after-sport jamming will not be effective.
提出一种跳频电台通过抑制跳频频率点、破坏干扰站网台分选的方法,从而达到对抗跳频跟踪式干扰的目的。
3
Based on the static characteristics of induction motor, this paper analyzes the braking function of general voltage vector controlledfrequency converter.