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。
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.
对于激光系统性能而言，谐振腔最佳透射率具有非常重要的作用。
For the laser system performance, the resonator optimum transmission is of great important.
用相平面法对谐振参数变化规律进行了分析，讨论了参数的最佳控制、开关器件的贮存时间补偿等问题。
After the parameters in control law is analyzed by Phase-Plane method, other questions including optimal control, compensation of storage time are also discussed.
本文利用频率跟踪和移相控制技术，使电源输出频率跟踪负载谐振频率变化，以保证最佳加热效率。
It could ensure the best efficiency by making the output frequency to trace the resonance frequency with the frequency tracing technique and phase-shifted control.
本文利用频率跟踪和移相控制技术，使电源输出频率跟踪负载谐振频率变化，以保证最佳加热效率。
It could ensure the best efficiency by making the output frequency to trace the resonance frequency with the frequency tracing technique and phase-shifted control.
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