adjustable frequency drive
... adjustable frequency bands 频段可调 adjustable frequency drive 频率可调传动 adjustable frequency motor 变频电动机 ...
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In this system, a frequency-adjustable ultrasonic drive signal is made by computer, then based on the motor 's revolution number, system can automatically find the syntonic frequency of motor.
在此系统中，首先使用计算机来产生一个频率可调的超声波驱动信号，然后通过对马达转数的检测，系统得到压电超声马达的最佳谐振频率值。
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